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 A074288 #5 Mar 31 2012 13:22:26 %S A074288 1,6,10,6,7,18,10,24,28,15,34,38,20,21,46,24,25,54,58,30,64,33,34,72, %T A074288 37,78,82,42,43,90,46,47,98,50,104,108,55,114,118,60,61,126,64,132, %U A074288 136,69,142,72,73,150,76,77,158,162,82,168,172,87,88,180,91,186 %N A074288 n-th term of the Kolakoski sequence (A000002) multiplied by the n-th partial sum. %H A074288 Nathaniel Johnston, <a href="/A074288/b074288.txt">Table of n, a(n) for n = 1..10000</a> %e A074288 The Kolakoski sequence begins 1,2,2,1,1,2,... and its sequence of partial sums (A054353) begins 1,3,5,6,7,9,... Therefore the opening terms are 1,6,10,6,7,18. %Y A074288 Cf. A054353, A074289. %K A074288 nonn,easy %O A074288 1,2 %A A074288 _Jon Perry_, Sep 21 2002 %E A074288 Edited and offset corrected by _Nathaniel Johnston_, May 02 2011