# A178869 (b-file synthesized from sequence entry) 0 0 1 1 2 9 3 71 4 549 5 4231 6 32589 7 250991 8 1933029 9 14887351 10 114655869 11 883029311 12 6800705109 13 52376052871 14 403377424749 15 3106636294031 16 23925952398789 17 184267208648791 18 1419145353851229 19 10929636098173151 20 84175271345046069