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A156492
Number of n X n arrays of squares of integers, symmetric about both diagonal and antidiagonal, with all rows summing to 32.
0
1, 2, 10, 30, 6308, 74688, 40816519, 721196432, 813786222831
OFFSET
2,2
CROSSREFS
Sequence in context: A371484 A268688 A281069 * A297467 A305011 A090809
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 09 2009
STATUS
approved