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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 (list; graph; refs; listen; history; text; internal format)
OFFSET

4,3

LINKS

Table of n, a(n) for n=4..10.

CROSSREFS

Sequence in context: A252292 A238177 A237172 * A185473 A235075 A229700

Adjacent sequences:  A146321 A146322 A146323 * A146325 A146326 A146327

KEYWORD

nonn

AUTHOR

R. H. Hardin Apr 14 2009

STATUS

approved

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Last modified June 29 14:08 EDT 2022. Contains 354913 sequences. (Running on oeis4.)