# A237654 (b-file synthesized from sequence entry) 0 1 1 0 2 5 3 5 4 25 5 49 6 150 7 365 8 990 9 2550 10 6726 11 17550 12 46015 13 120390 14 315275 15 825299 16 2160775 17 5656855 18 14809980 19 38772875 20 101508876 21 265753500 22 695751900 23 1821501900 24 4768754125 25 12484760124 26 32685526625 27 85571819345 28 224029931845 29 586517975725 30 1535523995826 31 4020054011225 32 10524638038410