# A147256 (b-file synthesized from sequence entry) 1 1 2 1 3 1 4 1 5 1 6 1 7 17 8 21 9 549 10 1079 11 10673 12 26871 13 476485 14 1364599 15 88490477 16 316329117 17 38154154091 18 169142706059 19 28100677201207 20 150981261883543 21 38976852011544623