3,2

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

P. Lisonek, Closed forms for the number of polygon dissections. Journal of Symbolic Computation 20 (1995), 595-601.

R. C. Read, On general dissections of a polygon, Aequat. Math. 18 (1978), 370-388.

Sequence in context: A056344 A125651 A043017 this_sequence A119581 A006292 A067370

Adjacent sequences: A003440 A003441 A003442 this_sequence A003444 A003445 A003446

nonn

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