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URL: https://oeis.org/A159209

⇱ A159209 - OEIS

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A159209
Number of n X n arrays of squares of integers with every 3X3 subblock summing to 9.
0
766, 5670, 24734, 79462, 333362, 1099974, 3149650, 11849382, 37740530, 110604070, 412449602, 1358595654, 4244427586
OFFSET
3,1
CROSSREFS
Sequence in context: A247486 A125109 A234163 * A045142 A115934 A252072
KEYWORD
nonn
AUTHOR
R. H. Hardin, Apr 06 2009
STATUS
approved