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A159213
Number of n X n arrays of squares of integers with every 3X3 subblock summing to 13.
0
1962, 17290, 84282, 296154, 1357914, 4805386, 14675562, 59946706, 202913226, 623911698, 2517552954, 8671996786
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OFFSET
3,1
LINKS
Table of n, a(n) for n=3..14.
CROSSREFS
Sequence in context:
A351680
A157627
A072598
*
A056094
A253528
A235966
Adjacent sequences:
A159210
A159211
A159212
*
A159214
A159215
A159216
KEYWORD
nonn
AUTHOR
R. H. Hardin
, Apr 06 2009
STATUS
approved
