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A156394 Number of 7X7 arrays of squares of integers, symmetric under 90 degree rotation, with all rows summing to n. 0
1, 0, 0, 42, 54, 0, 0, 7, 60, 0, 0, 144, 90, 0, 0, 24, 201, 0, 0, 336, 660, 0, 0, 60, 210, 0, 0, 930, 163, 0, 0, 150, 804, 0, 0, 1092, 1830, 0, 0, 168, 714, 0, 0, 2382, 492, 0, 0, 414, 984, 0, 0, 2340, 3432, 0, 0, 343, 768, 0, 0, 3690, 408, 0, 0, 643, 3039, 0, 0, 3216, 7986, 0, 0 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,4

LINKS

Table of n, a(n) for n=0..70.

CROSSREFS

Sequence in context: A108119 A175103 A116262 * A083244 A125009 A008886

Adjacent sequences:  A156391 A156392 A156393 * A156395 A156396 A156397

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 09 2009

STATUS

approved

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Last modified May 7 09:03 EDT 2021. Contains 343636 sequences. (Running on oeis4.)