# A108261 (b-file synthesized from sequence entry) 0 2 1 3 2 12 3 65 4 374 5 2175 6 12672 7 73853 8 430442 9 2508795 10 14622324 11 85225145 12 496728542 13 2895146103 14 16874148072 15 98349742325 16 573224305874 17 3340996092915 18 19472752251612 19 113495517416753 20 661500352248902 21 3855506596076655 22 22471539224211024