1,2

N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).

N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 (includes this sequence).

R. G. Stanton and P. H. Dirksen, Davenport-Schinzel sequences, Ars. Combin., 1 (1976), 43-51.

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.

R. K. Guy, Unsolved Problems in Number Theory, E20.

Eric Weisstein's World of Mathematics, Link to a section of The World of Mathematics.

Sequence in context: A028434 A001956 A106633 this_sequence A033156 A036573 A098573

Adjacent sequences: A002001 A002002 A002003 this_sequence A002005 A002006 A002007

nonn,nice

N. J. A. Sloane (njas(AT)research.att.com).