A113183 - cp's OEIS frontend

A113183 Number of unrooted two-face maps in the plane (considered up to orientation-preserving homeomorphism) with the faces of equal degree n: planar maps with a distinguished outside face.

n	a(n)
1	1
2	1
3	2
4	3
5	8
6	18
7	58
8	155
9	546
10	1592
11	5774
12	17798
13	65676
14	210362
15	785248
16	2588155
17	9743348
18	32832290
19	124416022
20	426685544
21	1625465732
22	5654938190
23	21636274202
24	76171463926
25	292498386900
26	1040120036300
27	4006388161846
28	14369121494126

[1, 1, 2, 3, 8, 18, 58, 155, 546, 1592, 5774, 17798, 65676, 210362, 785248, 2588155, 9743348, 32832290, 124416022, 426685544, 1625465732, 5654938190, 21636274202, 76171463926, 292498386900, 1040120036300, 4006388161846, 14369121494126]

cp's OEIS Frontend

A113183 Number of unrooted two-face maps in the plane (considered up to orientation-preserving homeomorphism) with the faces of equal degree n: planar maps with a distinguished outside face.

Table of values

List of values