A387146 Number of unlabeled biconnected cubic simple graphs with 2n nodes.

1, 0, 1, 2, 5, 18, 81, 480, 3874, 39866, 497818, 7187627, 116349635, 2072540352

Offset

0,4

Links

Table of n, a(n) for n=0..13.

Combos, Generate graphs.

Brendan McKay and Adolfo Piperno, nauty and Traces.

Crossrefs

Cf. A002851, A005638, A058378.

Sequence in context: A390861 A328440 A308634 * A118187 A307773 A332776

Adjacent sequences: A387143 A387144 A387145 * A387147 A387148 A387149

Keyword

nonn,more

Author

Hugo Pfoertner, Aug 21 2025

Extensions

a(13) from Georg Grasegger, Oct 07 2025

Status

approved