# A147215 (b-file synthesized from sequence entry) 1 1 2 1 3 1 4 1 5 1 6 1 7 1 8 17 9 41 10 71 11 215 12 773 13 2523 14 9517 15 44347 16 255961 17 1482711 18 8989887 19 64060215 20 492775957 21 4232478379