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 A001967 M0515 N0184 #26 Feb 04 2022 08:15:00
%S A001967 0,2,3,4,5,7,8,9,10,12,13,14,15,16,18,19,20,21,23,24,25,26,28,29,30,
%T A001967 31,33,34,35,36,38,39,40,41,42,44,45,46,47,49,50,51,52,54,55,56,57,59,
%U A001967 60,61,62,63,65,66,67,68,70,71,72,73,75,76,77,78,80,81,82,83
%N A001967 u-pile positions for the 4-Wythoff game with i=3.
%C A001967 See Connell (1959) for further information.
%D A001967 N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 (includes this sequence).
%D A001967 N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
%H A001967 T. D. Noe, <a href="/A001967/b001967.txt">Table of n, a(n) for n = 0..10000</a>
%H A001967 Ian G. Connell, <a href="http://dx.doi.org/10.4153/CMB-1959-024-3">A generalization of Wythoff's game</a>, Canad. Math. Bull. 2 (1959) 181-190.
%F A001967 a(n) = floor( (n+3/4)*(sqrt(5)-1) ). - _R. J. Mathar_, Feb 14 2011
%t A001967 Table[Floor[(n + 3/4)*(Sqrt[5] - 1)], {n, 0, 100}] (* _T. D. Noe_, Aug 17 2012 *)
%Y A001967 Cf. A001968 (v-pile).
%K A001967 nonn,easy
%O A001967 0,2
%A A001967 _N. J. A. Sloane_
%E A001967 Edited by _Hugo Pfoertner_, Dec 27 2021