# A126511 (b-file synthesized from sequence entry) 0 1 1 16 2 124 3 996 4 8084 5 65928 6 538668 7 4404564 8 36026044 9 294702188 10 2410856988 11 19722778372 12 161349704452 13 1319986934708 14 10798704179268 15 88343352897012 16 722730197415044 17 5912600825871716 18 48370539666789668 19 395715727752799652