%I M0172
%S 0,0,0,0,0,1,0,1,2,1,4,9,12,27,50,99,188,386,740,1528,3012,6192,12376,
%T 25594,51628,107135,218100,453895,930812,1943281,4009512,8394915,
%U 17414512
%N Number of nedge 3connected planar maps with a sensereversing automorphism.
%C Maps are counted up to isomorphism which is not restricted to those that preserve the orientation of the sphere.
%D N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
%D Computed by Nick Wormald (unpublished).
%H T. R. S. Walsh, <a href="/A007401/a007401.pdf">Number of sensed planar maps with n edges and m vertices</a>
%K nonn
%O 1,9
%A _N. J. A. Sloane_, T. R. S. Walsh, personal communication
