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A156496 Number of n X n arrays of squares of integers, symmetric about both diagonal and antidiagonal, with all rows summing to 34. 0
2, 4, 92, 168, 23020, 138156, 34265768, 728427904, 659452297402 (list; graph; refs; listen; history; text; internal format)
OFFSET
2,1
LINKS
CROSSREFS
Sequence in context: A327427 A335571 A335291 * A007534 A299784 A009379
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 09 2009
STATUS
approved

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Last modified February 22 16:01 EST 2024. Contains 370256 sequences. (Running on oeis4.)