0,2

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: A148378 A148379 A148380 this_sequence A148381 A148382 A148383

Adjacent sequences: A005494 A005495 A005496 this_sequence A005498 A005499 A005500

nonn,nice

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