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 A242850 #9 Sep 08 2022 08:46:08
%S A242850 0,6,780,6930,30744,96030,241956,526890,1032240,1866294,3168060,
%T A242850 5111106,7907400,11811150,17122644,24192090,33423456,45278310,
%U A242850 60279660,79015794,102144120,130395006,164575620,205573770,254361744,312000150,379641756,458535330,550029480,655576494
%N A242850 32*n^5 - 32*n^3 + 6*n.
%C A242850 Chebyshev polynomial of the second kind U(5,n).
%H A242850 Vincenzo Librandi, <a href="/A242850/b242850.txt">Table of n, a(n) for n = 0..1000</a>
%F A242850 G.f.: x*(6 + 744*x + 2340*x^2 + 744*x^3 + 6*x^4)/(1 - x)^6.
%F A242850 a(n) = 2*n*(2*n-1)*(2*n+1)*(4*n^2-3).
%t A242850 Table[32 n^5 - 32 n^3 + 6 n, {n, 0, 40}] (* or *) Table[ChebyshevU[5, n], {n, 0, 40}]
%o A242850 (Magma) [32*n^5-32*n^3+6*n: n in [0..40]];
%Y A242850 Cf. A000466, A144138, A144139, A242851.
%K A242850 nonn,easy
%O A242850 0,2
%A A242850 _Vincenzo Librandi_, May 29 2014
%E A242850 Edited by _Bruno Berselli_, May 29 2014