A113204 Same as A007022, but with orientation-reversing isomorphisms forbidden.

0, 0, 0, 0, 0, 1, 0, 1, 1, 4, 3, 15, 25, 92, 234, 803, 2469, 8512, 28290, 98148, 338673, 1188338, 4180854, 14840031, 52904562, 189724510, 683384218, 2472961423, 8984888982, 32772085447, 119963084542, 440623586740, 1623555117611, 6000283550482

Offset

1,10

Links

Table of n, a(n) for n=1..34.

G. Brinkmann, S. Greenberg, C. Greenhill, B. D. McKay, R. Thomas, and P. Wollan, Generation of simple quadrangulations of the sphere, Discr. Math., 305 (2005), 33-54. doi:10.1016/j.disc.2005.10.005

Gunnar Brinkmann and Brendan McKay, plantri and fullgen programs for generation of certain types of planar graph.

Gunnar Brinkmann and Brendan McKay, plantri and fullgen programs for generation of certain types of planar graph [Cached copy, pdf file only, no active links, with permission]

Gunnar Brinkmann and Brendan McKay, Fast generation of planar graphs (expanded version), 2008. Beware the typo in a(29).

CombOS - Combinatorial Object Server, generate planar graphs

Crossrefs

Cf. A113201, A078666, A007022, A002880, A113202, A113205.

Sequence in context: A120461 A324013 A345013 * A270188 A010309 A169702

Adjacent sequences: A113201 A113202 A113203 * A113205 A113206 A113207

Keyword

nonn

Author

N. J. A. Sloane, Jan 07 2006

Extensions

a(29) corrected by Brendan McKay, Jun 22 2006

Leading zeros prepended by Max Alekseyev, Sep 13 2016

Offset corrected by Andrei Zabolotskii, Feb 09 2018

a(34) from Brinkmann and McKay (2008) added by Andrei Zabolotskii, May 30 2026

Status

approved