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A146299
Number of n X n arrays of squares of integers with every (n-2)X(n-2) subblock summing to 8 and every element equal to at least one neighbor.
1
8, 18, 107798, 6685156, 62777794, 313834602, 1129602808, 3313914698, 8438118356, 19340801916
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OFFSET
4,1
LINKS
Table of n, a(n) for n=4..13.
CROSSREFS
Sequence in context:
A177367
A138492
A022512
*
A081968
A076096
A222636
Adjacent sequences:
A146296
A146297
A146298
*
A146300
A146301
A146302
KEYWORD
nonn
AUTHOR
R. H. Hardin
Apr 14 2009
STATUS
approved
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Last modified April 24 19:59 EDT 2024. Contains 371963 sequences. (Running on oeis4.)