0,1
W. G. Brown, Enumeration of triangulations of the disk, Proc. London Math. Soc., 14 (1964), 746-768.
N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
Sequence in context: A079909 A047669 A002316 * A185552 A171702 A003583
Adjacent sequences: A005496 A005497 A005498 * A005500 A005501 A005502
nonn
N. J. A. Sloane (njas(AT)research.att.com).