A066342 - OEIS

%I #4 Mar 30 2012 16:49:17

%S 1,2,4,8,14,25,40,67,102,165,244,387,562,881,1264,1967,2798,4333,6124,

%T 9451,13290,20457,28648,44007,61414,94181,131044,200675,278498,425953,

%U 589792,901087,1245150,1900509,2621404,3997659,5504986,8388569

%N Number of triangulations of the cyclic polytope C(n, n-4).

%H M. Azaola and F. Santos, <a href="http://personales.unican.es/santosf/Articulos/">The number of triangulations of the cyclic polytope C(n,n-4)</a>, Discrete Comput. Geom., 27 (2002), 29-48.

%F See Maple line.

%p A066342 := n-> if n mod 2 = 0 then (n+4)*2^((n-4)/2)-n else ((3*n+11)/2)*2^((n-5)/2)-n; fi;

%K nonn

%O 2,2

%A _N. J. A. Sloane_, Jan 04 2002