%I
%S 1,3,2,5,5,3,7,7,7,4,9,9,9,9,5,11,11,11,11,11,6,13,13,13,13,13,13,7,
%T 15,15,15,15,15,15,15,8,17,17,17,17,17,17,17,17,17,9,19,19,19,19,19,
%U 19,19,19,19,19,10
%N Triangle read by rows, n1 terms of (2n  1) followed by n.
%C Row sums = A001844: (1, 5, 13, 25, 41, 61,...).
%F A007318^(1) * [A003506 * A000012], as infinite lower triangular matrices.
%e First few rows of the triangle are;
%e 1;
%e 3, 2;
%e 5, 5, 3;
%e 7, 7, 7, 4;
%e 9, 9, 9, 9, 5;
%e ...
%Y Cf. A003506, A001844.
%K nonn,tabl
%O 1,2
%A _Gary W. Adamson_, Aug 29 2007
