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 A236363 #8 Jan 24 2014 11:00:56 %S A236363 1,2,3,4,5,6,7,8,9,3,9,3,6,9,9,6,9,12,9,9,9,9,12,9,9,9,9,9,18,9,9,18, %T A236363 18,18,18,18,18,18,18,18,9,18,18,18,18,27,18,9,18,18,27,18,18,27,27, %U A236363 27,18,36,27,27,27,18,27,27,27,27,27,27,27,27,27,36,36,36,36,27 %N A236363 Sum of digits of A114440(n). %C A236363 Because A114440 is finite, this sequence is necessarily also finite. %C A236363 Note that after a(23), all terms are divisible by 9 since all the terms that take three steps to arrive at 1 are multiples of 9 so the sum of digits of their predecessors must also be a multiple of 9. %H A236363 Ray Chandler, <a href="/A236363/b236363.txt">Table of n, a(n) for n = 1..15095</a> %F A236363 a(n) = A007953(A114440(n)). %Y A236363 Cf. A005349, A007953, A114440, A235600. %K A236363 nonn,base,fini,full %O A236363 1,2 %A A236363 _Ray Chandler_, Jan 23 2014