%I A054016
%S A054016 1,2,4,8,16,31,32,64,103,128,171,213,256,301,342,439,475,494,512,558,
%T A054016 595,911,1024,1075,1114,1189,1287,1606,1727,1996,2048,2102,2140,2225,
%U A054016 2339,2667,2691,3240,3733,4096,4153,4171,4371,4745,4912,5237,5601,5746
%N A054016 a(n) = smallest nonnegative integer not the Nim sum of at most 4 earlier 
               terms.
%C A054016 Grundy function for turn-at-most-5-coins game.
%D A054016 E. R. Berlekamp, J. H. Conway and R. K. Guy, Winning Ways, Academic Press, 
               NY, 2 vols., 1982, see Table 3, Chapter 14, p. 433.
%H A054016 A. S. Fraenkel, <a href="http://www.wisdom.weizmann.ac.il/~fraenkel/Papers/
               wolf4.ps">Mathematical Chats Between Two Physicists</a>, in Puzzlers' 
               Tribute: A Feast for the Mind, honoring Martin Gardner (D. Wolfe 
               and T. Rodgers, eds.), A. K. Peters, 2002, pp. 315-325.
%H A054016 <a href="Sindx_Ni.html#Nimsums">Index entries for sequences related to 
               Nim-sums</a>
%Y A054016 Cf. A000069, A033623, A054043, etc.
%Y A054016 Sequence in context: A164263 A018763 A054517 this_sequence A051039 A056183 
               A000127
%Y A054016 Adjacent sequences: A054013 A054014 A054015 this_sequence A054017 A054018 
               A054019
%K A054016 nonn,nice
%O A054016 1,2
%A A054016 N. J. A. Sloane (njas(AT)research.att.com), Apr 29 2000
%E A054016 More terms from Larry Reeves (larryr(AT)acm.org), Oct 31 2000