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 A144334 #4 Jun 02 2025 00:35:21 %S A144334 1,2,1,4,3,4,7,6,10,9,11,10,18,21,16,16,15,28,36,36,25,22,21,40,54,60, %T A144334 55,36,29,28,54,75,88,90,78,49,37,36,70,99,120,130,126,105,64,46,45, %U A144334 88,126,156,175,180,168,136,81,56,55,108,156,196,225,240,238,216,171,100 %N A144334 Triangle read by rows, A144328^2. %C A144334 Row sums = A144335: (1, 3, 11, 32, 76, 156, 288,...). %C A144334 Left border = A000124. %e A144334 First few rows of the triangle = %e A144334 1; %e A144334 2, 1 %e A144334 4, 3, 4; %e A144334 7, 6, 10, 9; %e A144334 11, 10, 18, 21, 16; %e A144334 16, 15, 28, 36, 36, 25; %e A144334 22, 21, 40, 54, 60, 55, 36; %e A144334 29, 28, 54, 75, 88, 90, 78, 49; %e A144334 ... %Y A144334 A144328, Cf. A144335 %K A144334 nonn,tabl %O A144334 1,2 %A A144334 _Gary W. Adamson_, Sep 18 2008