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 A174985 #8 Apr 25 2020 03:19:23 %S A174985 2,3,2,1,1,1,1,2,2,2,2,2,2,2,3,2,2,3,3,3,2,3,3,3,3,3,3,3,3,3,2,3,3,3, %T A174985 3,3,3,3,3,3,3,3,3,3,4,3,3,3,3,3,3,3,3,4,3,3,3,3,3,3,3,3,3,3,4,3,3,3, %U A174985 3,3,3,4,3,4,3,4,3,3,3,3,3,3,3,3,4,3,4,3,3,3,4,3,3,4,4,4,3,4,4,4 %N A174985 Start with n, iterate the map k -> A167507(k) until we reach 3, 4, 5 or 6; a(n) = number of steps required. %Y A174985 Cf. A167507, A174984, A174987. %K A174985 nonn,word %O A174985 1,1 %A A174985 _Jacques ALARDET_, Apr 03 2010 %E A174985 Edited by _N. J. A. Sloane_, Apr 05 2010