# A262986 (b-file synthesized from sequence entry) 1 1 2 2 3 6 4 12 5 24 6 39 7 63 8 91 9 123 10 168 11 218 12 273 13 345 14 423 15 507 16 597 17 709 18 828 19 954 20 1087 21 1247 22 1415 23 1591 24 1775 25 1991 26 2216 27 2450 28 2693 29 2945 30 3235 31 3535 32 3845 33 4165 34 4495 35 4869 36 5254 37 5650 38 6057 39 6475 40 6943 41 7423 42 7915 43 8419 44 8935 45 9463 46 10048 47 10646 48 11257 49 11881 50 12518