# A150645 (b-file synthesized from sequence entry) 0 1 1 2 2 7 3 27 4 119 5 532 6 2493 7 11751 8 56526 9 272852 10 1330410 11 6502103 12 31952536 13 157280769 14 776671738 15 3839959233 16 19022898390 17 94323668554 18 468299922839 19 2326622294614 20 11569292283782 21 57559421076093 22 286544762335029 23 1427071552401897 24 7110370388498281 25 35438671133831670 26 176687791134419279