# A111866 (b-file synthesized from sequence entry) 0 1 1 1 2 2 3 6 4 3 5 15 6 5 7 35 8 35 9 105 10 7 11 77 12 77 13 1001 14 143 15 429 16 2145 17 36465 18 12155 19 230945 20 46189 21 323323 22 29393 23 676039 24 676039 25 16900975 26 1300075 27 2340135 28 334305 29 9694845 30 215441 31 6678671 32 100180065 33 3305942145 34 64822395 35 2268783825