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 A338060 #4 Oct 18 2020 22:25:23 %S A338060 1,2,5,3,8,4,11,13,6,19,17,14,29,12,7,20,34,21,38,26,22,25,41,51,9,30, %T A338060 15,31,58,47,64,36,16,35,10,55,73,37,28,43,79,46,92,61,27,42,97,90,23, %U A338060 60,33,66,133,95,18,50,39,70,136,85,139,65,32,75,44,100,144,76,40,69 %N A338060 a(n) = m such that A338059(m) = n, or -1 if n does not appear in A338059. %C A338060 It is conjectured that A338059 is a permutation of the positive numbers. This is (conjecturally) the inverse permutation. %Y A338060 Cf. A336957, A338059. %K A338060 nonn %O A338060 1,2 %A A338060 _Scott R. Shannon_ and _N. J. A. Sloane_, Oct 18 2020