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A156502
Number of n X n arrays of squares of integers, symmetric about both diagonal and antidiagonal, with all rows summing to 38.
0
2, 108, 80, 22640, 182640, 60084184, 1377842504, 1573982139776
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OFFSET
3,1
LINKS
Table of n, a(n) for n=3..10.
CROSSREFS
Sequence in context:
A340054
A267550
A224819
*
A111456
A157067
A364616
Adjacent sequences:
A156499
A156500
A156501
*
A156503
A156504
A156505
KEYWORD
nonn
AUTHOR
R. H. Hardin
Feb 09 2009
STATUS
approved
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Last modified June 3 23:01 EDT 2024. Contains 373088 sequences. (Running on oeis4.)
