A169996 - OEIS

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A169996

Number of 2n-vertex 4-dissections on a cylinder.

1

3, 112, 1902, 23396, 243698, 2299064

(list; graph; refs; listen; history; text; internal format)

OFFSET

3,1

LINKS

Table of n, a(n) for n=3..8.

Juanjo Rué, Enumeration and limit laws of dissections on a cylinder, Discrete Math., 310 (2010), 2519-2541.

FORMULA

The reference gives an explicit g.f.

CROSSREFS

Sequence in context: A128684 A292336 A037116 * A054330 A024043 A199640

Adjacent sequences: A169993 A169994 A169995 * A169997 A169998 A169999

KEYWORD

nonn,more

AUTHOR

N. J. A. Sloane, Aug 29 2010

STATUS

approved