%I
%S 13,169,343,5751,40981,427313,4854187,44756637,495471093,7057443515,
%T 81567865207,907308467643,12030980609035,175766023364757
%N Number of 5Xn 0..1 arrays with all rows having a nonnegative second derivative, and all and columns having a positive second derivative in a quadratic least squares fit, with one and two element arrays taken as having a zero second derivative
%C Row 3 of A223652
%e Some solutions for n=3
%e ..1..1..1....0..0..1....1..1..1....1..1..1....1..1..1....1..1..1....1..1..1
%e ..1..0..0....1..1..1....1..0..1....1..0..1....1..0..0....1..0..1....0..0..0
%e ..1..0..0....0..0..0....0..0..0....0..0..0....0..0..1....0..0..1....1..0..1
%e ..0..0..1....0..0..0....0..0..0....1..1..1....1..1..1....1..0..0....1..0..1
%e ..1..0..1....1..1..1....1..1..1....1..0..1....1..1..1....1..1..1....1..1..1
%K nonn
%O 1,1
%A _R. H. Hardin_ Mar 25 2013
