A049365 Number of connected planar graphs with n nodes and even degrees (i.e., that are Eulerian).

1, 0, 1, 1, 3, 7, 21, 81, 401, 2499, 18604, 158515, 1464681, 14305475

Offset: 1

Author

Brendan McKay

Keywords

• nonn
• nice
• more
• hard

Comments

M. Kirchweger, M. Scheucher, and S. Szeider, SAT-Based Generation of Planar Graphs, in preparation.

Crossrefs

Inverse Euler transform of A049339.

Extensions

a(12) from Sean A. Irvine, Jul 30 2021

a(13)-a(14) from Manfred Scheucher, Mar 11 2023