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 A365080 #7 Aug 26 2023 08:57:23 %S A365080 0,1,3,2,6,4,9,5,10,7,13,8,27,14,54,20,15,11,18,12,34,19,64,26,65,35, %T A365080 104,44,405,119,1539,230,21,16,24,17,42,25,75,33,76,43,118,53,433,134, %U A365080 1594,251,135,77,189,90,629,209,2144,377,2210,665,5564,1034 %N A365080 Inverse permutation to A364885. %H A365080 Rémy Sigrist, <a href="/A365080/a365080.gp.txt">PARI program</a> %H A365080 <a href="/index/Per#IntegerPermutation">Index entries for sequences that are permutations of the natural numbers</a> %F A365080 a(2^k) = A000217(k + 1) for any k >= 0. %F A365080 Apparently, a(2^k-1) = A006893(k) for any k > 0. %e A365080 A364885(42) = 36, hence a(36) = 42. %o A365080 (PARI) See Links section. %Y A365080 Cf. A000217, A006893, A364885. %K A365080 nonn,base %O A365080 0,3 %A A365080 _Rémy Sigrist_, Aug 20 2023