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A156453
Number of n X n arrays of squares of integers, symmetric about main diagonal, with all rows summing to 11.
0
4, 42, 704, 37760, 5291400, 1392368488, 570443632816, 356237015034240, 353949803694601635
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OFFSET
3,1
LINKS
Table of n, a(n) for n=3..11.
CROSSREFS
Sequence in context:
A355410
A136045
A192949
*
A327200
A259062
A074768
Adjacent sequences:
A156450
A156451
A156452
*
A156454
A156455
A156456
KEYWORD
nonn
AUTHOR
R. H. Hardin
Feb 09 2009
STATUS
approved
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Last modified April 25 01:06 EDT 2024. Contains 371964 sequences. (Running on oeis4.)