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 A332819 #8 Feb 27 2020 22:49:06 %S A332819 1,1,2,1,3,2,5,1,4,3,13,2,7,5,6,1,11,4,17,3,10,13,29,2,9,7,8,5,19,6, %T A332819 37,1,26,11,15,4,23,17,14,3,31,10,41,13,12,29,53,2,25,9,22,7,43,8,39, %U A332819 5,34,19,61,6,47,37,20,1,21,26,73,11,58,15,89,4,59,23,18,17,65,14,97,3,16,31,101,10,33,41,38,13,67,12,35,29 %N A332819 a(n) = A108548(A064989(A332808(n))). %H A332819 Antti Karttunen, <a href="/A332819/b332819.txt">Table of n, a(n) for n = 1..26927</a> %F A332819 Fully multiplicative with a(2) = 1, a(3) = 2, a(A002144(n)) = A002145(n), and a(A002145(1+n)) = A002144(n) for all n >= 1. %F A332819 a(n) = A108548(A064989(A332808(n))). %F A332819 a(A332818(n)) = n. %o A332819 (PARI) A332819(n) = A108548(A064989(A332808(n))); %Y A332819 A left inverse of A332818. %Y A332819 Cf. A002144, A002145, A064989, A108548, A332808. %K A332819 nonn,mult %O A332819 1,3 %A A332819 _Antti Karttunen_, Feb 27 2020