# A025932 (b-file synthesized from sequence entry) 0 1 1 18 2 213 3 2114 4 19173 5 165354 6 1384741 7 11393778 8 92748645 9 750039290 10 6040740069 11 48528576642 12 389243479717 13 3119026937226 14 24977625311397 15 199948094540306 16 1600220345577189 17 12804941098049562 18 102455421613293925