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 A128047 #5 Feb 08 2023 09:34:20 %S A128047 1,-2,3,-5,1,5,-8,-6,8,7,-11,-18,2,19,9,-14,-35,-20,25,34,11,-17,-57, %T A128047 -65,5,6953,13 %N A128047 Binomial transform of A128046. %C A128047 Row sums = 1 %F A128047 Binomial transform of A128046, as infinite lower triangular matrices. %e A128047 First few rows of the triangle are: %e A128047 1; %e A128047 -2, 3; %e A128047 -5, 1, 5; %e A128047 -8, -6, 8, 7; %e A128047 -11, -18, 2, 19, 9; %e A128047 ... %Y A128047 Cf. A128046. %K A128047 tabl,sign,more %O A128047 1,2 %A A128047 _Gary W. Adamson_, Feb 11 2007