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 A062508 #13 Dec 15 2017 17:35:11
%S A062508 8,16,88,736,6568,59056,531448,4782976,43046728,387420496,3486784408,
%T A062508 31381059616,282429536488,2541865828336,22876792454968,
%U A062508 205891132094656,1853020188851848,16677181699666576,150094635296999128
%N A062508 a(n) = 3^(2n)+7.
%D A062508 D. M. Burton, Elementary Number Theory, Allyn and Bacon, Inc. Boston, MA, 1976, pp. 29.
%H A062508 Harvey P. Dale, <a href="/A062508/b062508.txt">Table of n, a(n) for n = 0..1000</a>
%H A062508 <a href="/index/Rec#order_02">Index entries for linear recurrences with constant coefficients</a>, signature (10, -9).
%F A062508 a(0)=8, a(1)=16, a(n)=10*a(n-1)-9*a(n-2). - _Harvey P. Dale_, May 13 2012
%p A062508 A062508:=n->3^(2*n)+7: seq(A062508(n), n=0..30); # _Wesley Ivan Hurt_, Feb 11 2017
%t A062508 3^(2Range[0,20])+7 (* or *) LinearRecurrence[{10,-9},{8,16},20] (* _Harvey P. Dale_, May 13 2012 *)
%Y A062508 Cf. A047854.
%K A062508 easy,nonn
%O A062508 0,1
%A A062508 _Jason Earls_, Jun 24 2001