A378077 - cp's OEIS frontend

A378077 Triangle read by rows: T(n,k) is the number of embeddings on the sphere of planar graphs with n vertices and k faces having connectivity exactly 2 and minimum vertex degree at least 3, k=6..2n-5.

n	a(n)
6	1
7	1
8	1
9	3
10	7
11	2
12	1
13	8
14	35
15	60
16	47
17	12
18	0
19	5
20	72
21	307
22	647
23	652
24	325
25	59
26	0
27	3
28	86
29	776
30	3395
31	7647
32	9582
33	6654
34	2442
35	368
36	0
37	0
38	45
39	1041
40	9091
41	38876
42	94278
43	136628
44	121204
45	64232
46	18916
47	2363
48	0
49	0
50	18
51	827
52	14407
53	111076
54	468211
55	1192511
56	1937266
57	2049784
58	1409199
59	607746
60	150161
61	16253

[1, 1, 1, 3, 7, 2, 1, 8, 35, 60, 47, 12, 0, 5, 72, 307, 647, 652, 325, 59, 0, 3, 86, 776, 3395, 7647, 9582, 6654, 2442, 368, 0, 0, 45, 1041, 9091, 38876, 94278, 136628, 121204, 64232, 18916, 2363, 0, 0, 18, 827, 14407, 111076, 468211, 1192511, 1937266, 2049784, 1409199, 607746, 150161, 16253]

cp's OEIS Frontend

A378077 Triangle read by rows: T(n,k) is the number of embeddings on the sphere of planar graphs with n vertices and k faces having connectivity exactly 2 and minimum vertex degree at least 3, k=6..2n-5.

Table of values

List of values