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A156493
Number of n X n arrays of squares of integers, symmetric under 90 degree rotation, with all rows summing to 32.
0
1, 0, 2, 6, 72, 804, 78655, 960648, 232585695, 21668424870
OFFSET
2,3
CROSSREFS
Sequence in context: A152885 A295182 A052613 * A339299 A218891 A117515
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 09 2009
STATUS
approved