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A156501
Number of n X n arrays of squares of integers, symmetric about both diagonal and antidiagonal, with all rows summing to 37.
0
2, 0, 50, 18, 13276, 76680, 40760544, 1759663680, 1948154942040
OFFSET
2,1
CROSSREFS
Sequence in context: A009493 A009718 A198799 * A012420 A140800 A012694
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 09 2009
STATUS
approved