%I A005281 M4104
%S A005281 1,6,14,23,34
%N A005281 Davenport-Schinzel numbers.
%D A005281 N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, 
               Academic Press, 1995 (includes this sequence).
%D A005281 D. P. Roselle and R. G. Stanton, Results on Davenport-Schinzel sequences, 
               pp. 249-267 in Proceedings of the Louisiana Conference on Combinatorics, 
               Graph Theory and Computer Science. Vol. 1, edited R. C. Mullin et 
               al., 1970.
%D A005281 R. K. Guy, Unsolved Problems in Number Theory, E20.
%Y A005281 Sequence in context: A015832 A084583 A022824 this_sequence A120345 A107400 
               A104675
%Y A005281 Adjacent sequences: A005278 A005279 A005280 this_sequence A005282 A005283 
               A005284
%K A005281 nonn
%O A005281 1,2
%A A005281 N. J. A. Sloane (njas(AT)research.att.com).