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 A235176 #11 Jan 11 2014 12:41:02 %S A235176 1,47,125,131,185,187,189,191,198,201,204,206,256,257,262,264,268,276, %T A235176 283,285,294,800,809,812,818,822,824,827,829,840,844,848,1076,1080, %U A235176 1118,1119,1133,1135,1151,1153,1164,1171,1175,1183,1186,1189,1195,1208,1210 %N A235176 Numbers k such that the sum of the first k refactorable numbers (A033950) is also a refactorable number. %H A235176 Giovanni Resta, <a href="/A235176/b235176.txt">Table of n, a(n) for n = 1..1000</a> %e A235176 The sum of the first 47 terms of A033950 equals 9120, which is A033950(616). %Y A235176 Cf. A033950, A235177. %K A235176 nonn %O A235176 1,2 %A A235176 _Ivan N. Ianakiev_, Jan 04 2014 %E A235176 a(8)-a(49) from _Giovanni Resta_, Jan 04 2014