A152069 Total number of Ucycles on 2n+1 nodes.

2, 16, 240, 5424, 163180, 6193248

Offset

1,1

Comments

See reference for precise definition.

Links

Table of n, a(n) for n=1..6.

K. Casteels and B. Stevens, Universal cycles of (n-1)-partitions of an n-set, Discr. Math., 309 (2009), 5332-5340.

Formula

a(n) = A152029(n) + A152068(n).

Crossrefs

Cf. A152029, A152068.

Sequence in context: A376392 A223614 A152029 * A188767 A206884 A188756

Adjacent sequences: A152066 A152067 A152068 * A152070 A152071 A152072

Keyword

nonn,more

Author

N. J. A. Sloane, Sep 15 2009

Status

approved