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 A069474 #9 Jun 13 2015 00:50:32
%S A069474 540,2100,5460,11340,20460,33540,51300,74460,103740,139860,183540,
%T A069474 235500,296460,367140,448260,540540,644700,761460,891540,1035660,
%U A069474 1194540,1368900,1559460,1766940,1992060,2235540,2498100,2780460,3083340
%N A069474 First differences of A069473.
%H A069474 <a href="/index/Rec#order_04">Index entries for linear recurrences with constant coefficients</a>, signature (4,-6,4,-1).
%F A069474 a(n) = 120*n^3 + 540*n^2 + 900*n + 540.
%F A069474 G.f.: 60*(9 - x + 5*x^2 - x^3)/(1 - x)^4. [_Bruno Berselli_, Feb 25 2015]
%t A069474 Differences[Table[(n + 1)^6 - n^6, {n, 0, 30}], 2] (* _Harvey P. Dale_, Dec 27 2011 *)
%Y A069474 Cf. A001014, A022522, A069473, A069475, A069476.
%Y A069474 Equals 60 * A005898(n+1).
%K A069474 nonn,easy
%O A069474 0,1
%A A069474 Eli McGowan (ejmcgowa(AT)mail.lakeheadu.ca), Mar 26 2002
%E A069474 Offset changed from 1 to 0 and added a(0)=540 by _Bruno Berselli_, Feb 25 2015