A159420 Number of n X n arrays of squares of integers with every (n-1)X(n-1) subblock summing to 27

88, 223176, 965933960, 4489601294080, 17024968617729600, 46153277154525398944, 81793715658361957586560, 88458274598979298245766144, 56041133859159452089225510480, 20683461264345734698581425659800

Offset

3,1

Links

Table of n, a(n) for n=3..12.

Crossrefs

Sequence in context: A267917 A093244 A079036 * A093222 A114922 A036951

Adjacent sequences: A159417 A159418 A159419 * A159421 A159422 A159423

Keyword

nonn

Author

R. H. Hardin Apr 11 2009

Status

approved