# A277980 (b-file synthesized from sequence entry) 0 0 1 30 2 84 3 162 4 264 5 390 6 540 7 714 8 912 9 1134 10 1380 11 1650 12 1944 13 2262 14 2604 15 2970 16 3360 17 3774 18 4212 19 4674 20 5160 21 5670 22 6204 23 6762 24 7344 25 7950 26 8580 27 9234 28 9912 29 10614 30 11340 31 12090 32 12864 33 13662 34 14484 35 15330 36 16200 37 17094 38 18012 39 18954 40 19920