This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A210952 #29 Jun 01 2012 19:17:09 %S A210952 1,1,3,1,3,5,1,3,7,9,1,3,7,12,12,1,3,7,14,21,20,1,3,7,14,24,31,25,1,3, %T A210952 7,14,26,40,47,38,1,3,7,14,26,43,61,66,49,1,3,7,14,26,45,70,92,93,69, %U A210952 1,3,7,14,26,45,73,106,130,124,87,1,3,7,14 %N A210952 Triangle read by rows: T(n,k) = sum of all parts of the k-th column of the partitions of n but with the partitions aligned to the right margin. %F A210952 T(n,k) = Sum_{j=1..n} A210953(j,k). - _Omar E. Pol_, May 26 2012 %e A210952 For n = 6 the illustration shows the partitions of 6 aligned to the right margin and below the sums of the columns: %e A210952 . %e A210952 . 6 %e A210952 . 3 + 3 %e A210952 . 4 + 2 %e A210952 . 2 + 2 + 2 %e A210952 . 5 + 1 %e A210952 . 3 + 2 + 1 %e A210952 . 4 + 1 + 1 %e A210952 . 2 + 2 + 1 + 1 %e A210952 . 3 + 1 + 1 + 1 %e A210952 . 2 + 1 + 1 + 1 + 1 %e A210952 . 1 + 1 + 1 + 1 + 1 + 1 %e A210952 ------------------------- %e A210952 . 1, 3, 7, 14, 21, 20 %e A210952 . %e A210952 So row 6 lists 1, 3, 7, 14, 21, 20. %e A210952 Triangle begins: %e A210952 1; %e A210952 1, 3; %e A210952 1, 3, 5; %e A210952 1, 3, 7, 9; %e A210952 1, 3, 7, 12, 12; %e A210952 1, 3, 7, 14, 21, 20; %e A210952 1, 3, 7, 14, 24, 31, 25; %e A210952 1, 3, 7, 14, 26, 40, 47, 38; %e A210952 1, 3, 7, 14, 26, 43, 61, 66, 49; %e A210952 1, 3, 7, 14, 26, 45, 70, 92, 93, 69: %Y A210952 Mirror of triangle A206283. Rows sums give A066186. Rows converge to A014153. Right border gives A046746, >= 1. %Y A210952 Cf. A135010, A138121, A181187, A210763, A210950, A210951, A210953, A210961, A210970. %K A210952 nonn,tabl %O A210952 1,3 %A A210952 _Omar E. Pol_, Apr 22 2012