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A156517 Number of nXn arrays of squares of integers, symmetric about main diagonal, with all rows summing to 58. 0
2, 6, 198, 20472, 11458140, 15139474872, 64914837681442, 1549731064209250952 (list; graph; refs; listen; history; internal format)
OFFSET

2,1

CROSSREFS

Sequence in context: A203430 A055696 A158096 * A091439 A176782 A013083

Adjacent sequences:  A156514 A156515 A156516 * A156518 A156519 A156520

KEYWORD

nonn

AUTHOR

R. H. Hardin (rhhardin(AT)att.net) Feb 09 2009

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Last modified February 17 00:09 EST 2012. Contains 205978 sequences.