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Search: id:A049290
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A049290 Array T(n,k) = number of subgroups of index k in free group of rank n, read by antidiagonals. +0
8
1, 1, 1, 1, 3, 1, 1, 7, 13, 1, 1, 15, 97, 71, 1, 1, 31, 625, 2143, 461, 1, 1, 63, 3841, 54335, 68641, 3447, 1, 1, 127, 23233, 1321471, 8563601, 3011263, 29093, 1, 1, 255, 139777, 31817471, 1035045121, 2228419359, 173773153, 273343, 1, 1, 511, 839425 (list; table; graph; listen)
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Last modified December 8 08:31 EST 2009. Contains 170430 sequences.


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