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A156427 Number of 19 X 19 arrays of squares of integers, symmetric about both diagonal and antidiagonal, with all rows summing to n. 0

%I #5 Oct 27 2019 18:08:51

%S 1,168992,5552479800,12483723152016,12976446818207108,

%T 1865501254974930048

%N Number of 19 X 19 arrays of squares of integers, symmetric about both diagonal and antidiagonal, with all rows summing to n.

%K nonn

%O 0,2

%A _R. H. Hardin_, Feb 09 2009

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Last modified June 20 01:41 EDT 2024. Contains 373510 sequences. (Running on oeis4.)