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Number of 7 X 7 arrays of squares of integers, symmetric about both diagonal and antidiagonal, with all rows summing to n.
0

%I #6 Jul 18 2024 08:51:07

%S 1,20,132,294,440,270,1414,635,1716,2096,5108,9108,3066,3096,9216,

%T 2952,9131,8172,21624,39000,31638,11364,31206,14100,32236,18704,64560,

%U 102762,51947,50136,38544,49526,74688,37944,138156,259560,175374,76680,182640

%N Number of 7 X 7 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