# A061954 (b-file synthesized from sequence entry) 1 1 2 3 3 5 4 9 5 15 6 21 7 96 8 99 9 259 10 1317 11 2112 12 52711 13 72483 14 124069 15 633696 16 651632 17 2391984 18 4317312 19 8101536 20 8344672