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%I #8 Dec 25 2016 02:18:14
%S 1,3,3,5,1,5,7,1,1,7,9,1,1,1,9,11,1,1,1,1,11,13,1,1,1,1,1,13,15,1,1,1,
%T 1,1,1,15,17,1,1,1,1,1,1,1,17,19,1,1,1,1,1,1,1,1,19,21,1,1,1,1,1,1,1,
%U 1,1,21,23,1,1,1,1,1,1,1,1,1,1,23,25,1,1,1,1,1,1,1,1,1,1,1,25,27,1,1,1,1,1
%N Triangle read by rows: 2*A131821 - A000012.
%C Row sums = 5*n + 1, A016861: (1, 6, 11, 16, 21, ...).
%H B. D. Swan, <a href="/A131843/b131843.txt">Table of n, a(n) for n = 0..100000</a>
%F 2*A131821 - A000012 as an infinite lower triangular matrix. 2*n - 1, (1, 3, 5, 7, ...) as right and left borders, with the rest zeros.
%e First few rows of the triangle are:
%e 1;
%e 3, 3;
%e 5, 1, 5;
%e 7, 1, 1, 7;
%e 9, 1, 1, 1, 9;
%e 11, 1, 1, 1, 1, 11;
%e ...
%Y Cf. A016861, A131821.
%K nonn,tabl,easy
%O 0,2
%A _Gary W. Adamson_, Jul 21 2007
%E Corrected and edited by B. D. Swan (bdswan(AT)gmail.com), Dec 20 2008
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