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A156507
Number of n X n arrays of squares of integers, symmetric about both diagonal and antidiagonal, with all rows summing to 43.
0
2, 58, 204, 41816, 422538, 169361504, 5201763072, 5719198097600
OFFSET
3,1
CROSSREFS
Sequence in context: A104494 A121931 A343578 * A285148 A115610 A341082
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 09 2009
STATUS
approved