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 A074289 #6 Mar 31 2012 13:22:26 %S A074289 6,10,24,34,46,64,72,82,114,118,132,142,186,196,200,222,240,268,290, %T A074289 298,302,316,326,344,358,370,414,436,454,460,496,518,524,600,622,640, %U A074289 650,658,672,696,720,750,764,782,792,846,864,878,886,890,896,914,918 %N A074289 Values of A000002(n)*A054353(n) that are repeated. %C A074289 Values that appear in A074288 multiple times. %H A074289 Nathaniel Johnston, <a href="/A074289/b074289.txt">Table of n, a(n) for n = 1..10000</a> %e A074289 The Kolakoski sequence begins 1,2,2,1,1,2,1,... and its sequence of partial sums begins 1,3,5,6,7,9,10,... Multiplying the sequences term-by-term gives 1,6,10,6,7,18,10,... Since 6 and 10 appear more than once, they are both in this sequence. %Y A074289 Cf. A054353, A074288. %K A074289 nonn,easy %O A074289 1,1 %A A074289 _Jon Perry_, Sep 21 2002 %E A074289 Extended and edited by _Nathaniel Johnston_, May 02 2011