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 A003412 M0559 #26 Jun 22 2017 07:00:58
%S A003412 1,2,3,4,6,8,11,14,18,24,32,43,54,68,86,110,142,185,239,307,393,503,
%T A003412 645,830,1069,1376,1769,2272,2917,3747,4816,6192,7961,10233,13150,
%U A003412 16897,21713,27905,35866,46099,59249,76146,97859,125764,161630,207729,266978
%N A003412 From a nim-like game.
%D A003412 R. K. Guy, personal communication.
%D A003412 N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
%H A003412 Vincenzo Librandi, <a href="/A003412/b003412.txt">Table of n, a(n) for n = 0..1000</a>
%H A003412 R. K. Guy, <a href="/A003410/a003410.pdf">Letter to N. J. A. Sloane, Apr 1975</a>
%H A003412 <a href="/index/Rec#order_06">Index entries for linear recurrences with constant coefficients</a>, signature (1, 0, 0, 0, 0, 1).
%F A003412 Recurrence: a(n) = a(n-1) + a(n-6) for n >= 12.
%F A003412 O.g.f.: -(1+x+x^2+x^3+2*x^4+2*x^5+2*x^6+x^7+x^8+2*x^9+2*x^10+3*x^11) / (-1+x+x^6). - _R. J. Mathar_, Dec 05 2007
%t A003412 Join[{1, 2, 3, 4, 6, 8}, LinearRecurrence[{1, 0, 0, 0, 0, 1}, {11, 14, 18, 24, 32, 43}, 80]] (* _Vladimir Joseph Stephan Orlovsky_, Feb 11 2012 *)
%Y A003412 Cf. A005708.
%K A003412 nonn
%O A003412 0,2
%A A003412 _N. J. A. Sloane_