1,2
E. R. Berlekamp, J. H. Conway and R. K. Guy, Winning Ways, Academic Press, NY, 2 vols., 1982; see Chapter 4.
Sequence in context: A025687 A025666 A025679 * A156537 A145316 A137298
Adjacent sequences: A071488 A071489 A071490 * A071492 A071493 A071494
nonn
N. J. A. Sloane (njas(AT)research.att.com) and Sue Pope (pope(AT)research.att.com), May 29 2002