# A375973 (b-file synthesized from sequence entry) 1 1 2 2 3 5 4 70 5 99 6 195 7 240 8 323 9 2378 10 2716 11 15015 12 48505 13 80782 14 130662 15 510068 16 672210 17 1926615 18 2744210 19 4116315 20 10278759 21 31320850 22 87347695 23 93222358 24 155904960 25 177385520 26 189539896 27 250637778 28 272607725 29 486471832 30 647562465 31 1620820270