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A146504 Number of n X n arrays of squares of integers with every (n-1)X(n-1) subblock summing to 16 and every element equal to at least one neighbor. 1
1, 163, 44537, 12234095, 13115315167 (list; graph; refs; listen; history; text; internal format)
OFFSET

3,2

LINKS

Table of n, a(n) for n=3..7.

CROSSREFS

Sequence in context: A138932 A217963 A138200 * A306501 A247269 A145741

Adjacent sequences:  A146501 A146502 A146503 * A146505 A146506 A146507

KEYWORD

nonn

AUTHOR

R. H. Hardin Apr 14 2009

STATUS

approved

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Last modified April 6 15:41 EDT 2020. Contains 333276 sequences. (Running on oeis4.)