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A159428
Number of n X n arrays of squares of integers with every (n-1)X(n-1) subblock summing to 31.
0
40, 359736, 2369330592, 18484921020800, 125821577726360192, 646591571175229349432, 2283659517989898114804472, 5141235435840001143869764928, 6990330762328103160234852524952
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OFFSET
3,1
LINKS
Table of n, a(n) for n=3..11.
CROSSREFS
Sequence in context:
A151605
A253107
A300842
*
A115482
A111401
A116101
Adjacent sequences:
A159425
A159426
A159427
*
A159429
A159430
A159431
KEYWORD
nonn
AUTHOR
R. H. Hardin
, Apr 11 2009
STATUS
approved
