# A058194 (b-file synthesized from sequence entry) 0 1 1 3 2 21 3 162 4 1636 5 19977 6 298416 7 5300296 8 110219750 9 2639842989 10 71859429837 11 2198244062193 12 74860247277672 13 2815351714711122 14 116130005180284423 15 5222901881792429337 16 254791333526874348652 17 13420798291405599027605 18 760201936044714899316798 19 46137860613934391781325337 20 2990483661567310913388458734