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A156491
Number of n X n arrays of squares of integers, symmetric about main diagonal, with all rows summing to 32.
0
1, 4, 18, 818, 310150, 480685728, 1904647839311, 14116339350926312
OFFSET
2,2
CROSSREFS
Sequence in context: A173222 A342467 A367533 * A287677 A069874 A222323
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 09 2009
STATUS
approved