Listed below are all 433 terms found <= 10^12 for A080372. Any term not listed is > 10^12. Donovan Johnson, Sep 02 2013 a(1) = 2 a(2) = 6 a(3) = 12 a(4) = 30 a(5) = 112 a(6) = 60 a(7) = 192 a(8) = 210 a(9) = 180 a(10) = 240 a(11) = 13312 a(12) = 420 a(13) = 12288 a(14) = 2112 a(15) = 1008 a(16) = 1320 a(17) = 2162688 a(18) = 1800 a(19) = 786432 a(20) = 2160 a(21) = 4800 a(22) = 15360 a(23) = 62914560 a(24) = 2520 a(25) = 6480 a(26) = 61440 a(27) = 6300 a(28) = 8640 a(29) = 3489660928 a(30) = 12240 a(31) = 3221225472 a(32) = 7560 a(33) = 64512 a(34) = 1376256 a(35) = 58320 a(36) = 12600 a(37) = 206158430208 a(38) = 8650752 a(39) = 184320 a(40) = 15120 a(42) = 20160 a(44) = 138240 a(45) = 35280 a(46) = 113246208 a(48) = 30240 a(49) = 326592 a(50) = 45360 a(51) = 7667712 a(52) = 430080 a(54) = 79200 a(55) = 414720 a(56) = 127680 a(57) = 16515072 a(58) = 8858370048 a(60) = 55440 a(62) = 91268055040 a(63) = 100800 a(64) = 120120 a(65) = 7630848 a(66) = 783360 a(68) = 24576000 a(69) = 415236096 a(70) = 285120 a(72) = 110880 a(75) = 550800 a(76) = 35389440 a(77) = 8211456 a(78) = 3133440 a(80) = 196560 a(81) = 485100 a(84) = 383040 a(85) = 90243072 a(87) = 103884521472 a(88) = 1397760 a(90) = 388080 a(91) = 20901888 a(92) = 1572864000 a(93) = 125627793408 a(95) = 276037632 a(96) = 332640 a(98) = 3032640 a(99) = 2534400 a(100) = 498960 a(102) = 32440320 a(104) = 3870720 a(105) = 1425600 a(108) = 917280 a(110) = 2903040 a(112) = 786240 a(114) = 200540160 a(115) = 5775556608 a(116) = 240786604032 a(117) = 9031680 a(119) = 238878720 a(120) = 982800 a(121) = 1874451456 a(124) = 144955146240 a(125) = 8910000 a(126) = 1108800 a(128) = 1580040 a(130) = 28200960 a(132) = 3548160 a(133) = 2102132736 a(135) = 1940400 a(136) = 97320960 a(138) = 1321205760 a(140) = 1995840 a(143) = 1693052928 a(144) = 2402400 a(145) = 369635622912 a(147) = 8164800 a(150) = 4633200 a(152) = 302776320 a(153) = 103219200 a(154) = 41057280 a(156) = 27955200 a(160) = 3991680 a(161) = 143709437952 a(162) = 3880800 a(165) = 22809600 a(168) = 4455360 a(169) = 37005299712 a(170) = 451215360 a(171) = 1710489600 a(174) = 132875550720 a(175) = 35640000 a(176) = 12579840 a(180) = 6224400 a(182) = 432967680 a(184) = 4844421120 a(186) = 789200240640 a(187) = 135444234240 a(189) = 11995200 a(190) = 2824077312 a(192) = 4324320 a(195) = 58060800 a(196) = 40824000 a(198) = 24837120 a(200) = 11476080 a(204) = 227082240 a(207) = 31973179392 a(208) = 108810240 a(209) = 634652983296 a(210) = 13970880 a(216) = 11531520 a(220) = 37739520 a(224) = 18258240 a(225) = 30164400 a(228) = 908328960 a(230) = 22083010560 a(231) = 475517952 a(234) = 99348480 a(238) = 4060938240 a(240) = 15135120 a(242) = 6953610240 a(243) = 68140800 a(245) = 891000000 a(250) = 62370000 a(252) = 14414400 a(255) = 3052339200 a(256) = 24864840 a(260) = 150958080 a(261) = 422785843200 a(264) = 46126080 a(266) = 6688604160 a(270) = 25225200 a(272) = 805109760 a(273) = 3209932800 a(275) = 1192320000 a(276) = 17175674880 a(280) = 33929280 a(285) = 5202247680 a(286) = 13302558720 a(288) = 27387360 a(290) = 761014517760 a(294) = 125737920 a(297) = 304819200 a(300) = 45405360 a(304) = 4211343360 a(306) = 2374041600 a(308) = 287400960 a(312) = 241274880 a(315) = 109771200 a(320) = 41081040 a(322) = 259900047360 a(324) = 77968800 a(325) = 1451520000 a(330) = 246758400 a(336) = 43243200 a(338) = 550725931008 a(340) = 3795517440 a(342) = 5367398400 a(343) = 13851000000 a(345) = 110415052800 a(350) = 663390000 a(351) = 496742400 a(352) = 180956160 a(357) = 11705057280 a(360) = 85765680 a(363) = 51214851072 a(364) = 1776660480 a(368) = 82355159040 a(374) = 367634350080 a(375) = 1274130000 a(378) = 100900800 a(380) = 15182069760 a(384) = 107442720 a(385) = 3265920000 a(390) = 987033600 a(392) = 233513280 a(396) = 301593600 a(399) = 109884211200 a(400) = 110270160 a(405) = 405543600 a(408) = 3406233600 a(414) = 85878374400 a(416) = 1157345280 a(420) = 285405120 a(425) = 63727534080 a(429) = 114885734400 a(432) = 172972800 a(440) = 717050880 a(441) = 742996800 a(448) = 164324160 a(450) = 350859600 a(455) = 69050880000 a(456) = 11808276480 a(459) = 7947878400 a(460) = 202144481280 a(462) = 2377589760 a(468) = 1761177600 a(475) = 570654720000 a(476) = 51836682240 a(480) = 183783600 a(484) = 40210007040 a(486) = 634233600 a(490) = 2245320000 a(495) = 2336947200 a(500) = 1185030000 a(504) = 302702400 a(507) = 707454259200 a(510) = 10218700800 a(512) = 328648320 a(513) = 54912614400 a(520) = 2426941440 a(525) = 1746360000 a(528) = 784143360 a(532) = 73574645760 a(539) = 128304000000 a(540) = 593762400 a(544) = 15668674560 a(546) = 5748019200 a(550) = 9694080000 a(552) = 291986472960 a(560) = 752431680 a(567) = 1451419200 a(570) = 48306585600 a(572) = 110048440320 a(576) = 367567200 a(585) = 4470681600 a(588) = 1804420800 a(594) = 3317529600 a(595) = 388177920000 a(600) = 805820400 a(608) = 35424829440 a(612) = 21572812800 a(616) = 4885816320 a(621) = 601148620800 a(624) = 3136573440 a(625) = 25282530000 a(630) = 1568548800 a(637) = 513216000000 a(640) = 845404560 a(648) = 1347746400 a(650) = 27578880000 a(660) = 2905943040 a(672) = 1127206080 a(675) = 6147187200 a(676) = 838061199360 a(680) = 26568622080 a(684) = 77207961600 a(686) = 104247000000 a(693) = 15545779200 a(700) = 9140040000 a(702) = 13502361600 a(704) = 3182699520 a(714) = 282593525760 a(720) = 1163962800 a(726) = 137560550400 a(728) = 23096586240 a(729) = 7214407200 a(735) = 15717240000 a(736) = 566797271040 a(750) = 5675670000 a(756) = 2320718400 a(760) = 138974330880 a(765) = 219794964480 a(768) = 1470268800 a(770) = 97511040000 a(780) = 11623772160 a(784) = 3969725760 a(792) = 5304499200 a(798) = 969847603200 a(800) = 3197834640 a(810) = 7299784800 a(816) = 56089313280 a(819) = 84130099200 a(825) = 27941760000 a(832) = 13752668160 a(840) = 3087564480 a(850) = 839393280000 a(855) = 449622835200 a(858) = 550242201600 a(864) = 3481077600 a(875) = 332057880000 a(880) = 7887559680 a(882) = 8172964800 a(891) = 31418956800 a(896) = 3381618240 a(900) = 6778371600 a(910) = 169827840000 a(912) = 247973806080 a(918) = 212321894400 a(924) = 18681062400 a(936) = 19372953600 a(945) = 11805393600 a(952) = 630400942080 a(960) = 4929724800 a(968) = 302633210880 a(972) = 6861254400 a(975) = 245306880000 a(980) = 50417640000 a(990) = 14529715200 a(1000) = 23808330000 a(1008) = 4655851200 a(1020) = 132843110400 a(1024) = 7558911360 a(1026) = 731204812800 a(1029) = 607257000000 a(1040) = 54286848000 a(1050) = 22702680000 a(1053) = 83949465600 a(1056) = 13145932800 a(1071) = 643778150400 a(1080) = 9863053200 a(1088) = 260050452480 a(1092) = 132204441600 a(1100) = 67858560000 a(1120) = 16319983680 a(1125) = 122367445200 a(1134) = 21088267200 a(1140) = 531372441600 a(1152) = 8454045600 a(1170) = 121521254400 a(1176) = 19848628800 a(1188) = 30673843200 a(1200) = 12681068400 a(1215) = 47221574400 a(1224) = 392625192960 a(1225) = 770144760000 a(1232) = 85932887040 a(1248) = 52583731200 a(1250) = 480368070000 a(1260) = 20886465600 a(1280) = 16062686640 a(1296) = 23005382400 a(1300) = 468840960000 a(1320) = 35286451200 a(1323) = 89902612800 a(1344) = 13967553600 a(1350) = 42454011600 a(1360) = 770490040320 a(1386) = 130767436800 a(1400) = 61621560000 a(1404) = 122695372800 a(1408) = 65729664000 a(1440) = 24443218800 a(1456) = 433400647680 a(1458) = 168364627200 a(1470) = 267193080000 a(1485) = 188886297600 a(1500) = 151621470000 a(1512) = 32590958400 a(1530) = 929901772800 a(1536) = 32125373280 a(1540) = 682577280000 a(1560) = 336578457600 a(1568) = 115122047040 a(1575) = 295134840000 a(1584) = 105859353600 a(1600) = 52378326000 a(1620) = 94897202400 a(1632) = 953518325760 a(1638) = 764486553600 a(1650) = 627419520000 a(1664) = 178784686080 a(1680) = 68367499200 a(1701) = 331862731200 a(1728) = 67509842400 a(1760) = 162317675520 a(1764) = 138940401600 a(1782) = 301895193600 a(1792) = 103359896640 a(1800) = 73329656400 a(1848) = 354940185600 a(1872) = 297974476800 a(1890) = 169816046400 a(1920) = 96376119840 a(1944) = 198976377600 a(1960) = 496215720000 a(1980) = 516465331200 a(2000) = 317026710000 a(2016) = 118356638400 a(2025) = 901523422800 a(2048) = 162023621760 a(2080) = 788755968000 a(2100) = 385945560000 a(2112) = 270529459200 a(2160) = 202897094400 a(2240) = 243035432640 a(2268) = 653736283200 a(2304) = 214169155200 a(2352) = 377123947200 a(2376) = 922574822400 a(2400) = 366648282000 a(2430) = 897209913600 a(2520) = 293318625600 a(2560) = 401567166000 a(2592) = 439977938400 a(2640) = 670442572800 a(2688) = 449755225920 a(2700) = 806626220400 a(2880) = 793685692800