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 A010856 #26 Aug 19 2018 02:38:56
%S A010856 17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,
%T A010856 17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,17,
%U A010856 17,17,17,17,17,17,17,17
%N A010856 Constant sequence: a(n) = 17.
%H A010856 Tanya Khovanova, <a href="http://www.tanyakhovanova.com/RecursiveSequences/RecursiveSequences.html">Recursive Sequences</a>
%H A010856 <a href="/index/Di#divseq">Index to divisibility sequences</a>
%H A010856 <a href="/index/Rec#order_01">Index entries for linear recurrences with constant coefficients</a>, signature (1).
%F A010856 a(n) = A152179(3n) + A152179(3n+1) + A152179(3n+2). - _Paul Curtz_, Nov 28 2008
%F A010856 G.f.: 17/(1-x); e.g.f.: 17*e^x. - _Vincenzo Librandi_, Jan 20 2012
%t A010856 Table[17,{80}] (* _Vincenzo Librandi_, Jan 20 2012 *)
%K A010856 nonn,easy
%O A010856 0,1
%A A010856 _N. J. A. Sloane_