# A150548 (b-file synthesized from sequence entry) 0 1 1 2 2 7 3 26 4 105 5 431 6 1827 7 7883 8 34355 9 151327 10 672562 11 3005578 12 13506779 13 60999340 14 276513218 15 1257747158 16 5739244040 17 26258189734 18 120423829974 19 553516970829 20 2549217000255 21 11761428696128 22 54355208008882 23 251586124907058 24 1166116972610051 25 5412142000435618 26 25149404570126040 27 116998424278050487