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A156463 Number of nXn arrays of squares of integers, symmetric about main diagonal, with all rows summing to 16. +0
1
1, 2, 4, 11, 347, 38042, 12496449, 9230231522, 12532444401442, 31544855681886910 (list; graph; listen)
OFFSET

1,2

CROSSREFS

Sequence in context: A006894 A038093 A057284 this_sequence A156519 A070314 A075554

Adjacent sequences: A156460 A156461 A156462 this_sequence A156464 A156465 A156466

KEYWORD

nonn

AUTHOR

Ron Hardin (rhhardin(AT)att.net) Feb 09 2009

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.


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