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 A308201 #28 Jun 30 2019 17:17:26 %S A308201 0,1,2,3,4,5,2,6,7,1,4,0,8,3,6,5,1,9,10,0,4,6,3,11,5,2,8,7,7,8,10,12, %T A308201 1,9,5,3,9,11,0,2,3,6,12,10,8,8,5,1,4,7,0,11,13,2,9,10,12,2,6,5,13,8, %U A308201 4,0,11,14,11,7,3,13,8,10,9,2,14,1,6,12,12,9 %N A308201 Sprague-Grundy values for Maharaja Nim on an infinite single-quadrant board scanned by upwards antidiagonals. %C A308201 A Maharaja combines the moves of a queen and a knight. %C A308201 If we add 1 to every term we get A274630. %H A308201 Rémy Sigrist, <a href="/A308201/b308201.txt">Table of n, a(n) for n = 0..10010</a> %H A308201 Urban Larsson and Johan Wästlund, <a href="https://arxiv.org/abs/1207.0765">Maharaja Nim: Wythoff’s Queen meets the Knight</a>, arXiv 1207.0765 [math.CO], 2012. %H A308201 Urban Larsson and Johan Wästlund, <a href="https://www.emis.de/journals/INTEGERS/papers/og5/og5.Abstract.html">Maharaja Nim: Wythoff’s Queen meets the Knight</a>, Integers: Electronic Journal of Combinatorial Number Theory 14 (2014), #G05. %H A308201 Rémy Sigrist, <a href="/A308201/a308201.png">Colored representation of the first 1000 antidiagonals</a> (where the hue is function of T(x,y) and black pixels correspond to 0's) %H A308201 Rémy Sigrist, <a href="/A308201/a308201.gp.txt">PARI program for A308201</a> %e A308201 The Sprague-Grundy values are as follows (this shows the first 7 antidiagonals): %e A308201 0, 2, 5, 1, 6, 4, 7, ... %e A308201 1, 4, 7, 3, 0, 8, ... %e A308201 3, 6, 8, 10, 2, ... %e A308201 2, 0, 9, 5, ... %e A308201 4, 1, 11, ... %e A308201 5, 3, ... %e A308201 6, ... %e A308201 ... %o A308201 (PARI) See Links section. %Y A308201 Cf. A307282. %Y A308201 For the positions of the 0's, see A307281. %Y A308201 The top row of the array is A308882 (or A274632 - 1). %Y A308201 The leading column is A274631 - 1, the main diagonal is A274633 - 1. %Y A308201 A274630 is essentially the same sequence (but with 1 added to every term). %K A308201 nonn,tabl %O A308201 0,3 %A A308201 _N. J. A. Sloane_, Jun 30 2019 %E A308201 More terms from _Rémy Sigrist_, Jun 30 2019