# A032250 (b-file synthesized from sequence entry) 1 1 2 1 3 1 4 2 5 10 6 29 7 113 8 368 9 1316 10 4490 11 15907 12 55866 13 199550 14 714601 15 2583575 16 9385280 17 34311304 18 126018592 19 465044951 20 1722987050 21 6407739430 22 23909854891 23 89493459541 24 335911158480 25 1264104712300