# A139581 (b-file synthesized from sequence entry) 0 0 1 21 2 46 3 75 4 108 5 145 6 186 7 231 8 280 9 333 10 390 11 451 12 516 13 585 14 658 15 735 16 816 17 901 18 990 19 1083 20 1180 21 1281 22 1386 23 1495 24 1608 25 1725 26 1846 27 1971 28 2100 29 2233 30 2370 31 2511 32 2656 33 2805 34 2958 35 3115 36 3276 37 3441 38 3610 39 3783 40 3960 41 4141