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A146496
Number of n X n arrays of squares of integers summing to 13 with every element equal to at least one neighbor.
1
0, 64, 4832, 450473, 57412424, 1363499112, 14031503424, 90356045683, 431216399848
OFFSET
2,2
CROSSREFS
Sequence in context: A249393 A208708 A189957 * A058874 A302264 A302964
KEYWORD
nonn
AUTHOR
R. H. Hardin Apr 14 2009
STATUS
approved