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 A194846 #9 Mar 18 2022 21:53:40 %S A194846 1,2,3,4,5,6,7,8,9,10,15,11,12,13,14,20,16,21,17,18,19,26,22,27,23,28, %T A194846 24,25,33,29,34,30,35,31,36,32,45,41,37,42,38,43,39,44,40,54,50,46,55, %U A194846 51,47,52,48,53,49,64,60,56,65,61,57,66,62,58,63,59,75,71,67 %N A194846 Inverse permutation to A194845; every positive integer occurs exactly once. %t A194846 (See A194844.) %Y A194846 Cf. A194844, A194845. %K A194846 nonn %O A194846 1,2 %A A194846 _Clark Kimberling_, Sep 04 2011