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%I #4 Mar 16 2013 06:39:50
%S 99,989,16089,215563,2616383,31465359,363006521,3765617353,
%T 43008488235,509667805085,5518115942960,58959131052620
%N Number of (n+2)X3 0..2 arrays with all rows and columns having a strictly positive second derivative in a quadratic least squares fit
%C Column 1 of A223157
%e Some solutions for n=1
%e ..2..1..1....2..1..2....2..0..2....1..0..2....1..1..2....1..1..2....1..1..2
%e ..0..0..1....1..0..0....1..0..0....0..0..1....0..0..1....0..0..1....0..0..1
%e ..2..1..2....2..0..2....1..1..2....2..1..2....2..0..1....1..0..1....0..0..1
%K nonn
%O 1,1
%A _R. H. Hardin_ Mar 16 2013
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