# A075721 (b-file synthesized from sequence entry) 0 2 1 3 2 4 3 5 4 8 5 14 6 26 7 92 8 356 9 1412 10 5636 11 185559 12 556671 13 21152738 14 42305474 15 2919075981 16 14595379885 17 102167659153 18 3882371047054 19 361060507372953 20 16969843846526629 21 1561225633880447476 22 6244902535521789892