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A156406 Number of 11 X 11 arrays of squares of integers, symmetric about both diagonal and antidiagonal, with all rows summing to n. 0

%I #5 Oct 27 2019 22:11:25

%S 1,312,26820,424980,4108632,10491480,36058540,69492920,448032730,

%T 378230514,1435365144,3867308971,10607876660,16504055920,18737188768,

%U 31390349120,99812199364,71763897760,163052061000,338077231956

%N Number of 11 X 11 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 March 29 04:23 EDT 2024. Contains 371264 sequences. (Running on oeis4.)