# A012179 (b-file synthesized from sequence entry) 0 1 1 5 2 121 3 6621 4 636337 5 94260341 6 19853570985 7 5628171840461 8 2063430523313761 9 949149114720943077 10 534861693803619166681 11 362197405161801586405565 12 290099119826974859032451601