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 A231890 #31 Apr 13 2021 23:44:00 %S A231890 0,2,5,4,1,9,7,10,8,3,16,6,11,17,13,18,14,19,12,21,20,15,24,22,25,26, %T A231890 28,33,23,32,27,34,29,35,30,36,31,37,38,39,40,41,42,43,44,45,46,48,47, %U A231890 49,50 %N A231890 Terms of A231889 (base-2 analog of A231880) written in base 10. %C A231890 A231889 (and A231890) eventually merges with A231891 (and A231892). For n > 30, a(n) = A231892(n-1). - _Hans Havermann_, Nov 18 2013 %H A231890 Hans Havermann, <a href="/A231890/b231890.txt">Table of n, a(n) for n = 0..1000</a> %Y A231890 Cf. A228407, A231880, A231881, A231889, A231890, A231891, A231892. %K A231890 nonn,base %O A231890 0,2 %A A231890 _N. J. A. Sloane_, Nov 17 2013 %E A231890 More terms from _Hans Havermann_, Nov 18 2013