A322914 - cp's OEIS frontend

A322914 a(0)=0; for n>0, a(n) is the number of rooted 4-regular maps on the torus having n vertices.

n	a(n)
0	0
1	1
2	15
3	198
4	2511
5	31266
6	385398
7	4721004
8	57590271
9	700465482
10	8501284530
11	103007201364
12	1246500179910
13	15068548264212
14	182007001727244
15	2196875784339288
16	26501619841355871
17	319541469851970522
18	3851239987536347034
19	46399926869155488708
20	558853144337650364226

[0, 1, 15, 198, 2511, 31266, 385398, 4721004, 57590271, 700465482, 8501284530, 103007201364, 1246500179910, 15068548264212, 182007001727244, 2196875784339288, 26501619841355871, 319541469851970522, 3851239987536347034, 46399926869155488708, 558853144337650364226]

cp's OEIS Frontend

A322914 a(0)=0; for n>0, a(n) is the number of rooted 4-regular maps on the torus having n vertices.

Table of values

List of values