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%I #7 Feb 20 2022 14:47:20
%S 1,3,4,5,5,9,7,7,7,16,9,9,9,9,25,11,11,11,11,11,36,13,13,13,13,13,13,
%T 49,15,15,15,15,15,15,15,64
%N Triangle read by rows: A051340^2.
%C Row sums = A003215: (1, 7, 19, 37, 61, 91, 127, ...).
%F The square of A051340 as an infinite lower triangular matrix.
%e First few rows of the triangle:
%e 1;
%e 3, 4;
%e 5, 5, 9;
%e 7, 7, 7, 16;
%e 9, 9, 9, 9, 25;
%e 11, 11, 11, 11, 11, 36;
%e 13, 13, 13, 13, 13, 13, 49;
%e ...
%Y Cf. A051340, A003215.
%K nonn,tabl
%O 1,2
%A _Gary W. Adamson_, May 18 2007
%E Edited by _N. J. A. Sloane_, Jan 05 2009