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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
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OFFSET
2,1
LINKS
Table of n, a(n) for n=2..10.
CROSSREFS
Sequence in context:
A327427
A335571
A335291
*
A007534
A299784
A009379
Adjacent sequences:
A156493
A156494
A156495
*
A156497
A156498
A156499
KEYWORD
nonn
AUTHOR
R. H. Hardin
Feb 09 2009
STATUS
approved
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Last modified March 19 01:34 EDT 2024. Contains 370952 sequences. (Running on oeis4.)