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A067216 Number of n X n 0..8 matrices with all row and column sums equal. +0
1
9, 81, 18081, 264639729 (list; graph; listen)
OFFSET

1,1
CROSSREFS

Sequence in context: A167723 A003302 A053915 this_sequence A076088 A061211 A115988

Adjacent sequences: A067213 A067214 A067215 this_sequence A067217 A067218 A067219

KEYWORD

nonn

AUTHOR

Ron Hardin (rhhardin(AT)att.net), Feb 20 2002

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Last modified November 23 17:09 EST 2009. Contains 167438 sequences.

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