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A156479 Number of n X n arrays of squares of integers, symmetric about main diagonal, with all rows summing to 24. 0
4, 42, 1104, 151919, 102258544, 204824609668, 788766739361404, 5839894406308561716 (list; graph; refs; listen; history; text; internal format)
OFFSET

3,1

LINKS

Table of n, a(n) for n=3..10.

CROSSREFS

Sequence in context: A243809 A220180 A134356 * A111829 A200000 A198209

Adjacent sequences:  A156476 A156477 A156478 * A156480 A156481 A156482

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 09 2009

STATUS

approved

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Last modified February 24 07:50 EST 2018. Contains 299599 sequences. (Running on oeis4.)