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Search: id:A130613
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A130613 Number of ways of placing non-attacking knights on an n X n chessboard symmetric about main diagonal. +0
1
1, 2, 8, 26, 125, 1089, 11632, 180936, 3829276, 122898169, 5157005541, 328952820944, 27732644636492, 3546034350173724, 597955340246293229, 153413017541604438052, 51883480594556703445379 (list; graph; listen)
OFFSET

0,2
CROSSREFS

Adjacent sequences: A130610 A130611 A130612 this_sequence A130614 A130615 A130616

Sequence in context: A128238 A110156 A026660 this_sequence A143338 A027267 A060414

KEYWORD

nonn

AUTHOR

Ron Hardin (rhh(AT)cadence.com), Aug 25 2008

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Last modified October 7 14:39 EDT 2008. Contains 144666 sequences.

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