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A146294
Number of n X n arrays of squares of integers with every (n-1)X(n-1) subblock summing to 8 and every element equal to at least one neighbor.
1
4, 6, 13372, 569370, 4490816, 20143086, 67388028, 187458768, 458291208, 1017185004, 2092976212, 4050199948, 7448027128, 13117064768
OFFSET
3,1
CROSSREFS
Sequence in context: A137024 A054264 A077305 * A133982 A069179 A336764
KEYWORD
nonn
AUTHOR
R. H. Hardin Apr 14 2009
STATUS
approved