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A156417 Number of 14 X 14 arrays of squares of integers, symmetric under 90-degree rotation, with all rows summing to n. 0
1, 0, 116760, 0, 222925920, 0, 10399874310, 0, 142353126510, 0, 1557290676774, 0, 14188463179758, 0, 76743963405033, 0 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Table of n, a(n) for n=0..15.

CROSSREFS

Sequence in context: A172783 A252886 A046407 * A156865 A233681 A246557

Adjacent sequences:  A156414 A156415 A156416 * A156418 A156419 A156420

KEYWORD

nonn

AUTHOR

R. H. Hardin, Feb 09 2009

STATUS

approved

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Last modified January 17 10:58 EST 2022. Contains 350387 sequences. (Running on oeis4.)