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A156524 Number of n X n arrays of squares of integers, symmetric about both diagonal and antidiagonal, with all rows summing to 73. 0

%I #4 Dec 18 2015 18:17:18

%S 2,2,102,194,52440,367472,1145093308,43695620566

%N Number of n X n arrays of squares of integers, symmetric about both diagonal and antidiagonal, with all rows summing to 73.

%K nonn

%O 2,1

%A _R. H. Hardin_ Feb 09 2009

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Last modified April 23 20:33 EDT 2024. Contains 371916 sequences. (Running on oeis4.)