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 A128589 #4 Feb 18 2022 22:25:20 %S A128589 1,1,1,1,0,2,1,1,0,3,1,0,0,0,5,1,1,2,0,0,8,1,0,0,0,0,0,13,1,1,0,3,0,0, %T A128589 0,21,1,0,2,0,0,0,0,0,34,1,1,0,0,5,0,0,0,0,55 %N A128589 A051731 * A127647. %C A128589 Row sums = A007435: (1, 2, 3, 5, 6, 12, 14, ...), inverse Moebius transform of the Fibonacci numbers. %F A128589 Inverse Moebius transform of A127647, as infinite lower triangular matrices. %e A128589 First few rows of the triangle: %e A128589 1; %e A128589 1, 1; %e A128589 1, 0, 2; %e A128589 1, 1, 0, 3; %e A128589 1, 0, 0, 0, 5; %e A128589 1, 1, 2, 0, 0, 8; %e A128589 ... %Y A128589 Cf. A051731, A127647, A007435. %K A128589 nonn,tabl %O A128589 1,6 %A A128589 _Gary W. Adamson_, Mar 11 2007