A380366 Number of unsensed combinatorial maps with n edges and without faces of degree 1.

1, 1, 3, 11, 48, 291, 2464, 27146, 377966, 6239425

Offset

0,3

Links

Table of n, a(n) for n=0..9.

Crossrefs

Cf. A006389 (planar), A214816, A380364 (rooted), A380365 (sensed).

Sequence in context: A186374 A187249 A105151 * A111680 A095822 A025539

Adjacent sequences: A380363 A380364 A380365 * A380367 A380368 A380369

Keyword

nonn,more

Author

Andrew Howroyd, Jan 28 2025

Status

approved