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A156508 Number of n X n arrays of squares of integers, symmetric about both diagonal and antidiagonal, with all rows summing to 44. 0
2, 44, 48, 22618, 262332, 192850444, 6858194432, 9780453956696 (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: A177490 A203498 A156478 * A239865 A007367 A006313

Adjacent sequences:  A156505 A156506 A156507 * A156509 A156510 A156511

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 09 2009

STATUS

approved

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Last modified May 9 10:29 EDT 2021. Contains 343732 sequences. (Running on oeis4.)