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 A141257 #10 Jan 24 2023 06:58:01 %S A141257 2,6,10,6,14,9,4,55,4,39,14,15,8,34,6,38,10,21,22,46,9,10,26,9,4,203, %T A141257 6,155,10,33,34,35,4,6,74,57,26,15,82,21,86,22,6,10,1081,8,21,4,10,51, %U A141257 4,689,6,15,22,21,57,58,118,6,305,62,6,14,30,26,33,134,34,69,10,497,6,6 %N A141257 (1, 2, 3, 2^2, 5, 2*3, 7, 2^3, 3^2, 2^5, 11, 2^2*3, 13, ...) transform in (1*2, 3*2, 2*5, 2*3, 7*2, 3*3, 2*2, 5*11, 2*2, 3*13, ...). %K A141257 nonn,less %O A141257 1,1 %A A141257 _Juri-Stepan Gerasimov_, Aug 08 2008 %E A141257 a(61) inserted by _R. J. Mathar_, Apr 14 2010