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 A349315 #10 Dec 19 2021 12:42:41 %S A349315 1,2,3,4,5,6,7,8,9,10,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19, %T A349315 20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42, %U A349315 43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60 %N A349315 Ordinal transform of A348674. %C A349315 n is the a(n)-th nonnegative integer having value A348674(n). %H A349315 Alois P. Heinz, <a href="/A349315/b349315.txt">Table of n, a(n) for n = 0..65536</a> %F A349315 a(n) = 1 <=> n in { A349316 }. %p A349315 b:= proc(s) option remember; (n-> {parse(s), seq(seq(seq(x+y, %p A349315 y=b(s[i+1..n])), x=b(s[1..i])), i=1..n-1)})(length(s)) %p A349315 end: %p A349315 p:= proc() 0 end: %p A349315 a:= proc(n) option remember; local t; %p A349315 t:= nops(b(""||n)); %p A349315 p(t):= p(t)+1 %p A349315 end: %p A349315 seq(a(n), n=0..100); %Y A349315 Cf. A348674, A349316. %K A349315 nonn,look,base %O A349315 0,2 %A A349315 _Alois P. Heinz_, Nov 14 2021