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A156484
Number of n X n arrays of squares of integers, symmetric about main diagonal, with all rows summing to 26.
0
2, 12, 228, 4884, 575670, 230597508, 199962700756, 417970766466976, 3511155032255902644
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OFFSET
2,1
LINKS
Table of n, a(n) for n=2..10.
CROSSREFS
Sequence in context:
A132879
A348332
A101712
*
A333447
A347597
A009272
Adjacent sequences:
A156481
A156482
A156483
*
A156485
A156486
A156487
KEYWORD
nonn
AUTHOR
R. H. Hardin
Feb 09 2009
STATUS
approved
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Last modified May 9 19:33 EDT 2024. Contains 372354 sequences. (Running on oeis4.)