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A156505
Number of n X n arrays of squares of integers, symmetric about main diagonal, with all rows summing to 41.
0
2, 22, 276, 6030, 711944, 541412940, 3816643437740, 85769714419958096
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OFFSET
2,1
LINKS
Table of n, a(n) for n=2..9.
CROSSREFS
Sequence in context:
A365529
A264836
A135634
*
A367979
A256928
A349107
Adjacent sequences:
A156502
A156503
A156504
*
A156506
A156507
A156508
KEYWORD
nonn
AUTHOR
R. H. Hardin
Feb 09 2009
STATUS
approved
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Last modified April 19 11:31 EDT 2024. Contains 371792 sequences. (Running on oeis4.)