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A156463
Number of n X n arrays of squares of integers, symmetric about main diagonal, with all rows summing to 16.
0
1, 2, 4, 11, 347, 38042, 12496449, 9230231522, 12532444401442, 31544855681886910
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OFFSET
1,2
LINKS
Table of n, a(n) for n=1..10.
CROSSREFS
Sequence in context:
A198864
A038093
A057284
*
A227530
A218129
A156519
Adjacent sequences:
A156460
A156461
A156462
*
A156464
A156465
A156466
KEYWORD
nonn
AUTHOR
R. H. Hardin
Feb 09 2009
STATUS
approved
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Last modified May 2 08:27 EDT 2024. Contains 372178 sequences. (Running on oeis4.)