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A146092
Number of n X n arrays of squares of integers with every (n-2)X(n-2) subblock summing to 4 and every element equal to at least one neighbor.
1
1, 235, 1894, 5928, 14762, 31448, 59802, 104420, 170678, 264732, 393518, 564752, 786930, 1069328, 1422002, 1855788, 2382302, 3013940, 3763878, 4646072, 5675258, 6866952, 8237450, 9803828, 11583942, 13596428, 15860702
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OFFSET
4,2
LINKS
Table of n, a(n) for n=4..30.
CROSSREFS
Sequence in context:
A091427
A068663
A129857
*
A257310
A268890
A254676
Adjacent sequences:
A146089
A146090
A146091
*
A146093
A146094
A146095
KEYWORD
nonn
AUTHOR
R. H. Hardin
, Apr 14 2009
STATUS
approved
