0,2

T. S. Motzkin, Sorting numbers ...: for a link to this paper see A000262.

T. S. Motzkin, Sorting numbers for cylinders and other classification numbers, in Combinatorics, Proc. Symp. Pure Math. 19, AMS, 1971, pp. 167-176.

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

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

Index entries for sequences related to sorting

Cf. A036073, A001861, A002872-A002874.

Sequence in context: A119036 A164313 A087981 this_sequence A110491 A019010 A009672

Adjacent sequences: A002872 A002873 A002874 this_sequence A002876 A002877 A002878

nonn,nice,more,easy

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