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URL: https://oeis.org/A156520

⇱ A156520 - OEIS

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A156520
Number of n X n arrays of squares of integers, symmetric about both diagonal and antidiagonal, with all rows summing to 64.
0
1, 2, 2, 7, 19, 50198, 788009, 1184902962, 55064648562
OFFSET
1,2
CROSSREFS
Sequence in context: A049955 A184714 A156464 * A307426 A343577 A342644
KEYWORD
nonn
AUTHOR
R. H. Hardin, Feb 09 2009
STATUS
approved