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 A029877 #7 Jul 08 2025 19:23:52 %S A029877 1,3,5,9,15,25,38,61,91,137,200,293,416,595,832,1161,1601,2198,2983, %T A029877 4042,5419,7245,9615,12714,16703,21879,28492,36989,47795,61561,78956, %U A029877 100986,128653,163461,206981,261393 %N A029877 Euler transform of Thue-Morse sequence A001285. %H A029877 N. J. A. Sloane, <a href="/transforms.txt">Transforms</a> %K A029877 nonn %O A029877 0,2 %A A029877 _N. J. A. Sloane_