0,2

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).

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.

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).