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 A157028 #6 Jun 02 2025 01:24:22 %S A157028 1,2,1,4,2,1,8,5,3,1,16,12,6,4,1,32,28,13,10,5,1,64,64,33,20,15,6,1, %T A157028 128,144,84,39,35,21,7,1,256,320,202,88,70,56,28,8,1,512,704,468,228, %U A157028 131,126,84,36,9,1,1024,1536,1071,600,260,252,210,120,45,10,1 %N A157028 Triangle read by rows, A007318 * A156348. %C A157028 Row sums = A157029: (1, 3, 7, 17, 39, 89, 203, 459,...). %F A157028 Triangle read by rows, binomial transform of A156348. %e A157028 1; %e A157028 2, 1; %e A157028 4, 2, 1; %e A157028 8, 5, 3, 1; %e A157028 16, 12, 6, 4, 1; %e A157028 32, 28, 13, 10, 5, 1; %e A157028 64, 64, 33, 20, 15, 6, 1; %e A157028 128, 144, 84, 39, 35, 21, 7, 1; %e A157028 256, 320, 202, 88, 70, 56, 28, 8, 1; %e A157028 512, 704, 468, 228, 131, 126, 84, 36, 9, 1; %e A157028 1024, 1536, 1071, 600, 260, 252, 210, 120, 45, 10, 1; %e A157028 2048, 3328, 2441, 1495, 605, 468, 462, 330, 165, 55, 11, 1; %e A157028 4096, 7168, 5532, 3508, 1595, 864, 924, 792, 495, 220, 66, 12, 1; %e A157028 ... %Y A157028 Cf. A156348, A157019, A157029 %K A157028 nonn,tabl %O A157028 1,2 %A A157028 _Gary W. Adamson_ & _Mats Granvik_, Feb 21 2009