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A156495
Number of n X n arrays of squares of integers, symmetric about main diagonal, with all rows summing to 34.
0
2, 16, 240, 11384, 2357900, 1169154652, 1459321148152, 6041865902961856
OFFSET
2,1
CROSSREFS
Sequence in context: A188767 A206884 A188756 * A203418 A207082 A207176
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 09 2009
STATUS
approved