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A274314
a(n) = number of squares in GL(n,2), the ring of invertible n X n matrices over GF(2).
0
1, 1, 3, 126, 11340, 5940840, 12076523928, 95052257647200, 3153668941285723200, 406198470650573931200640, 215366179177149634500004545792, 447870507819487666185959047316144640, 3770394197251690930118967532374966498493440, 126205342254129164806148123600990735262978861434880, 16960349752279776751561660450391351891796348875427924676608
OFFSET
0,3
CROSSREFS
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Jun 25 2016
STATUS
approved