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 A381628 #7 Mar 03 2025 09:33:39 %S A381628 0,1,2,3,4,5,6,7,9,8,10,11,12,13,14,15,16,18,17,19,21,23,25,27,29,31, %T A381628 33,20,22,24,26,28,30,32,34,36,35,37,38,39,40,41,42,43,45,44,46,48,51, %U A381628 54,57,60,63,66,47,49,52,55,58,61,64,67,70,68,71,74,77,79 %N A381628 Inverse permutation to A381627. %H A381628 Rémy Sigrist, <a href="/A381628/b381628.txt">Table of n, a(n) for n = 0..8192</a> %H A381628 Rémy Sigrist, <a href="/A381628/a381628.gp.txt">PARI program</a> %H A381628 <a href="/index/Per#IntegerPermutation">Index entries for sequences that are permutations of the natural numbers</a> %e A381628 A381627(67) = 61, so a(61) = 67. %o A381628 (PARI) \\ See Links section. %Y A381628 Cf. A381627. %K A381628 nonn,base %O A381628 0,3 %A A381628 _Rémy Sigrist_, Mar 02 2025