5,2

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: A087971 A127919 A074092 this_sequence A071007 A027617 A154626

Adjacent sequences: A003442 A003443 A003444 this_sequence A003446 A003447 A003448

nonn

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