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A159361 Number of nXn arrays of squares of integers with every (n-2)X(n-2) subblock summing to 5 +0
1
68, 3974, 489344, 11519386, 120219092, 783628988, 3750168768, 14410898388, 46984276484, 134788006082, 348991646336, 830716777310, 1843200453460, 3853005291320, 7651988628800, 14534976588312, 26551869394500 (list; graph; listen)
OFFSET

4,1

LINKS

R. H. Hardin, Table of n, a(n) for n=4..25

CROSSREFS

Sequence in context: A035802 A017731 A093268 this_sequence A004298 A159365 A145623

Adjacent sequences: A159358 A159359 A159360 this_sequence A159362 A159363 A159364

KEYWORD

nonn

AUTHOR

Ron Hardin (rhhardin(AT)att.net) Apr 11 2009

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Last modified December 20 00:58 EST 2009. Contains 171054 sequences.


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