# A150887 (b-file synthesized from sequence entry) 0 1 1 2 2 8 3 33 4 151 5 695 6 3313 7 15843 8 76947 9 374476 10 1836732 11 9022243 12 44508240 13 219816053 14 1088349343 15 5393319850 16 26768335661 17 132947167359 18 660965701420 19 3287802337905 20 16365662215874 21 81496435764381 22 406028382495682 23 2023547656562763 24 10088477320218765 25 50309283755844190 26 250949814720460235