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 A361481 #8 Mar 16 2023 12:05:27 %S A361481 0,1,2,3,4,6,5,7,8,14,9,11,13,10,12,15,16,30,17,23,29,18,20,22,26,19, %T A361481 25,27,21,24,28,31,32,62,33,47,61,34,40,46,58,35,39,49,55,57,59,36,38, %U A361481 44,50,52,54,37,41,43,45,53,42,48,60,51,56,63,64,126,65 %N A361481 Distinct values of A361478, in order of appearance. %C A361481 This sequence is a permutation of the nonnegative integers with inverse A361482. %H A361481 Rémy Sigrist, <a href="/A361481/b361481.txt">Table of n, a(n) for n = 0..8191</a> %H A361481 Rémy Sigrist, <a href="/A361481/a361481.gp.txt">PARI program</a> %H A361481 <a href="/index/Per#IntegerPermutation">Index entries for sequences that are permutations of the natural numbers</a> %F A361481 a(n) < 2^k iff n < 2^k. %o A361481 (PARI) See Links section. %Y A361481 Cf. A361478, A361482 (inverse). %K A361481 nonn,base %O A361481 0,3 %A A361481 _Rémy Sigrist_, Mar 14 2023