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A146324
Number of n X n arrays of squares of integers with every (n-2)X(n-2) subblock summing to 9 and every element equal to at least one neighbor.
1
0, 1, 79712, 22307525, 361408204, 2478531976, 11081201168
OFFSET
4,3
CROSSREFS
Sequence in context: A252292 A238177 A237172 * A185473 A235075 A229700
KEYWORD
nonn
AUTHOR
R. H. Hardin Apr 14 2009
STATUS
approved