%I
%S 0,1,2,11,74,633,6134,64439,709302,8085725,94713809,1134914458,
%T 13865916560,172301697581,2173270387051
%N Number of polyhedra with n faces and n+1 vertices (or n vertices and n+1 faces).
%C Through a(18) the only primes are 2, 11, and 64439.  _Jonathan Vos Post_, Apr 23 2011
%H G. P. Michon, <a href="http://www.numericana.com/data/polyhedra.htm">Counting Polyhedra</a>
%e a(5)=1 because the triangular prism is the only pentahedron with 6 vertices.
%Y Cf. A002856, A000109, A058786, A058787, A058788.
%K hard,nice,nonn
%O 4,3
%A _Gerard P. Michon_, Nov 30 2000
