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A159420 Number of nXn arrays of squares of integers with every (n-1)X(n-1) subblock summing to 27 +0
1
88, 223176, 965933960, 4489601294080, 17024968617729600, 46153277154525398944, 81793715658361957586560, 88458274598979298245766144, 56041133859159452089225510480, 20683461264345734698581425659800 (list; graph; listen)
OFFSET

3,1
CROSSREFS

Sequence in context: A157460 A093244 A079036 this_sequence A093222 A114922 A036951

Adjacent sequences: A159417 A159418 A159419 this_sequence A159421 A159422 A159423

KEYWORD

nonn

AUTHOR

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

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Last modified December 20 16:54 EST 2009. Contains 171081 sequences.

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