# A277244 (b-file synthesized from sequence entry) 0 1 1 2 2 9 3 31 4 109 5 335 6 1002 7 2741 8 7168 9 17685 10 41801 11 94377 12 205277 13 430087 14 872302 15 1714941 16 3278477 17 6103521 18 11091375 19 19700943 20 34265319 21 58429093 22 97816791 23 160944051 24 260558245 25 415434960 26 652940560 27 1012418264 28 1549884617 29 2344153951 30 3505141354