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 A341488 #10 Feb 14 2021 14:50:14 %S A341488 1,1,2,5,8,4,2,8,1,9,25,116,8,117,25,16,1,17,25,108,8,109,25,24,1,25, %T A341488 2,29,8,28,2,32,1,33,97,92,8,93,97,40,1,41,122,45,8,44,122,48,1,49, %U A341488 122,53,8,52,122,56,1,57,97,68,8,69,97,64,1,65,97,60,8,61 %N A341488 a(0) = 1, and for any n > 0, a(n) = A341458(a(n-1), n). %C A341488 This sequence is an analog of the factorial function for the group described in A341458, and has interesting graphical features. %H A341488 Rémy Sigrist, <a href="/A341488/b341488.txt">Table of n, a(n) for n = 0..32769</a> %H A341488 Rémy Sigrist, <a href="/A341488/a341488.gp.txt">PARI program for A341488</a> %F A341488 Apparently: %F A341488 - a(n) = 1 iff n = 1 or n belongs to A008590, %F A341488 - a(n) = n iff n belongs to A017077. %o A341488 (PARI) See Links section. %Y A341488 Cf. A000142, A008590, A017077, A341458. %K A341488 nonn,look,base %O A341488 0,3 %A A341488 _Rémy Sigrist_, Feb 13 2021