# A162300 (b-file synthesized from sequence entry) 0 1 1 13 2 90 3 442 4 1728 5 5720 6 16653 7 43745 8 105586 9 237354 10 502113 11 1007773 12 1931631 13 3554746 14 6308706 15 10837593 16 18078112 17 29360890 18 46535840 19 72124195 20 109499325 21 163097740 22 238660747 23 343506072 24 486827392 25 680018170 26 937014482 27 1274649714