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A035309 Triangle read by rows giving number of ways to glue sides of a 2n-gon so as to produce a surface of genus g. +0
6
1, 1, 2, 1, 5, 10, 14, 70, 21, 42, 420, 483, 132, 2310, 6468, 1485, 429, 12012, 66066, 56628, 1430, 60060, 570570, 1169740, 225225, 4862, 291720, 4390386, 17454580, 12317877, 16796, 1385670, 31039008, 211083730, 351683046, 59520825, 58786, 6466460, 205633428, 2198596400, 7034538511, 4304016990 (list; graph; listen)
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Last modified December 10 12:37 EST 2009. Contains 170569 sequences.


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