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A132073 A007318 + A131821 - A103451 as infinite lower triangular matrices.

%I A132073 #4 Mar 05 2022 00:58:38
%S A132073 1,2,2,3,3,3,4,4,4,4,5,5,7,5,5,6,6,11,11,6,6,7,7,16,21,16,7,7,8,8,22,
%T A132073 36,36,22,8,8,9,9,29,57,71,57,29,9,9,10,10,37,85,127,127,85,37,10,10
%N A132073 A007318 + A131821 - A103451 as infinite lower triangular matrices.
%C A132073 Row sums = A132074: (1, 4, 9, 16, 27, 46, 81, 148, 279, ...).
%e A132073 First few rows of the triangle:
%e A132073    1;
%e A132073    2,  2;
%e A132073    3,  3,  3;
%e A132073    4,  4,  4,  4;
%e A132073    5,  5,  7,  5,   5;
%e A132073    6,  6, 11, 11,   6,   6;
%e A132073    7,  7, 16, 21,  16,   7,  7;
%e A132073    8,  8, 22, 36,  36,  22,  8,  8;
%e A132073    9,  9, 29, 57,  71,  57, 29,  9,  9;
%e A132073   10, 10, 37, 85, 127, 127, 85, 37, 10, 10;
%e A132073   ...
%Y A132073 Cf. A007318, A131821, A103451, A132074.
%K A132073 nonn,tabl
%O A132073 0,2
%A A132073 _Gary W. Adamson_, Aug 09 2007