# A148502 (b-file synthesized from sequence entry) 0 1 1 1 2 3 3 5 4 15 5 33 6 119 7 307 8 1145 9 3121 10 11951 11 35141 12 139831 13 427607 14 1714441 15 5420309 16 22183715 17 72324439 18 298824829 19 993349021 20 4142872043 21 14065088951 22 59209316301 23 204041427767 24 863673823849 25 3018732122265 26 12867879154311 27 45529390221089 28 194959475597363 29 696922326292943 30 2998774832112917