A259354 Number of generalized fusenes with n nonagons.

1, 1, 4, 19, 136, 1226, 12259, 130435, 1441755, 16390266, 190484723, 2254489731, 27096464528, 329995577356, 4065180800962, 50584233942184

Offset

1,3

Links

Table of n, a(n) for n=1..16.

G. Brinkmann, O. Delgado Friedrichs, S. Lisken, A. Peeters, N. Van Cleemput, CaGe - a Virtual Environment for Studying Some Special Classes of Plane Graphs

G. Brinkmann and P. Goetschalckx, Enumeration of Generalized Fusenes, MATCH: Communications in Mathematical and in Computer Chemistry, 74(3) (2015), 505-520.

Eric Weisstein's World of Mathematics, Fusene

Crossrefs

Cf. A108070, A259351, A259352, A259353, A259355.

Sequence in context: A220066 A157303 A007788 * A215851 A197920 A208811

Adjacent sequences: A259351 A259352 A259353 * A259355 A259356 A259357

Keyword

nonn,more

Author

Pieter Goetschalckx, Jun 24 2015

Status

approved