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A159358 Number of n X n arrays of squares of integers with every (n-3)X(n-3) subblock summing to 4 1
21, 10863, 485580, 5524819, 34063605, 147025901, 501203288, 1443386025, 3661046269, 8408644815, 17831404296, 35411163363, 66561697945, 119403667269, 205752113900, 342352218641, 552401782713, 867401681215, 1329378303444 (list; graph; refs; listen; history; text; internal format)
OFFSET

5,1

LINKS

R. H. Hardin, Table of n, a(n) for n=5..25

CROSSREFS

Sequence in context: A176446 A135823 A013726 * A048914 A046183 A203674

Adjacent sequences:  A159355 A159356 A159357 * A159359 A159360 A159361

KEYWORD

nonn

AUTHOR

R. H. Hardin Apr 11 2009

STATUS

approved

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Last modified June 30 02:06 EDT 2022. Contains 354913 sequences. (Running on oeis4.)