References to A006717

Number of toroidal semi-queens on a (2n+1) X (2n+1) board.
1, 3, 15, 133, 2025, 37851, 1030367, 36362925, 1606008513, 87656896891

1 seqfan posts

Tue Aug 17 02:52:32 CEST 2010    [seqfan] Re: Permutations whose sum mod n is also a permutation
Index of A-numbers in seqfan: by ascending order    by month    by frequency    by keyword
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