# A150476 (b-file synthesized from sequence entry) 0 1 1 2 2 7 3 25 4 99 5 408 6 1743 7 7592 8 33651 9 151142 10 686105 11 3140899 12 14483587 13 67201968 14 313451655 15 1468679425 16 6909242269 17 32619395556 18 154484826721 19 733698600403 20 3493462038199 21 16672268433976 22 79733503526769 23 382047478275086 24 1833820437688211 25 8816528308289812 26 42450764141048481 27 204679157938797273