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 A144825 #4 Jun 02 2025 00:36:41 %S A144825 1,1,2,3,4,6,4,4,8,8,10,11,13,16,20,6,5,7,13,17,12,21,22,24,27,31,36, %T A144825 42,16,16,16,16,32,32,32,32,27,27,27,36,36,36,54,54,54,20,19,21,18,22, %U A144825 42,48,41,49,40,55,56,58,61,65,70,76,83,91,100,110 %N A144825 Triangle read by rows, A144824 * A000012. %C A144825 Row sums = A144826: (1, 3, 13, 24, 70,...). %C A144825 Left border = A023896: (1, 1, 3, 4, 10, 16, 21,...). %C A144825 Right border = A002618: (1, 2, 6, 8, 20,...). %F A144825 Triangle read by rows, A144824 * A000012 = partial sums of A144824 row terms starting from the right. %e A144825 First few rows of the triangle = %e A144825 1; %e A144825 1, 2; %e A144825 3, 4, 6; %e A144825 4, 4, 8, 8; %e A144825 10, 11, 13, 16, 20; %e A144825 6, 5, 7, 13, 17, 12; %e A144825 21, 22, 24, 27, 31, 36, 42; %e A144825 16, 16, 16, 16, 32, 32, 32, 32; %e A144825 ... %Y A144825 A144824 %K A144825 nonn,tabl %O A144825 1,3 %A A144825 _Gary W. Adamson_, Sep 21 2008