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 A117333 #8 Dec 26 2023 23:49:03 %S A117333 1,2,3,4,5,6,8,7,9,10,16,11,12,13,14,15,17,18,42,19,20,21,22,23,24,25, %T A117333 26,43,27,28,29,30,41,31,32,33,34,35,36,37,38,39,40,44,245,45,46,47, %U A117333 48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,243,68,246,69 %N A117333 Inverse permutation to A117332. %C A117333 A117331(a(n)) = A000961(n). %H A117333 <a href="/index/Per#IntegerPermutation">Index entries for sequences that are permutations of the natural numbers</a> %Y A117333 Cf. A000961, A117331, A117332. %K A117333 nonn %O A117333 1,2 %A A117333 _Reinhard Zumkeller_, Mar 08 2006