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 A069476 #11 Jun 13 2015 00:50:32 %S A069476 1800,2520,3240,3960,4680,5400,6120,6840,7560,8280,9000,9720,10440, %T A069476 11160,11880,12600,13320,14040,14760,15480,16200,16920,17640,18360, %U A069476 19080,19800,20520,21240,21960,22680,23400,24120,24840,25560,26280,27000 %N A069476 First differences of A069475, successive differences of (n+1)^6-n^6. %H A069476 Tanya Khovanova, <a href="http://www.tanyakhovanova.com/RecursiveSequences/RecursiveSequences.html">Recursive Sequences</a> %H A069476 <a href="/index/Rec#order_02">Index entries for linear recurrences with constant coefficients</a>, signature (2,-1). %F A069476 a(n) = 720*n + 1800 = 360*A020735(n+1). %F A069476 G.f.: 360*(5 - 3*x)/(1 - x)^2. [_Bruno Berselli_, Feb 25 2015] %t A069476 Table[720 n + 1800, {n, 0, 40}] (* _Bruno Berselli_, Feb 25 2015 *) %Y A069476 Cf. A001014, A020735, A022522, A069473, A069474, A069475. %K A069476 nonn,easy %O A069476 0,1 %A A069476 Eli McGowan (ejmcgowa(AT)mail.lakeheadu.ca), Mar 26 2002 %E A069476 Offset changed from 1 to 0 and added a(0)=1800 by _Bruno Berselli_, Feb 25 2015