A370319 - cp's OEIS frontend

A370319 Triangle read by rows where T(n,k) is the number of labeled graphs with n vertices and k non-isolated vertices.

n	a(n)
0	1
1	1
2	0
3	1
4	0
5	1
6	1
7	0
8	3
9	4
10	1
11	0
12	6
13	16
14	41
15	1
16	0
17	10
18	40
19	205
20	768
21	1
22	0
23	15
24	80
25	615
26	4608
27	27449
28	1
29	0
30	21
31	140
32	1435
33	16128
34	192143
35	1887284
36	1
37	0
38	28
39	224
40	2870
41	43008
42	768572
43	15098272
44	252522481
45	1
46	0
47	36
48	336
49	5166
50	96768
51	2305716
52	67942224
53	2272702329
54	66376424160

[1, 1, 0, 1, 0, 1, 1, 0, 3, 4, 1, 0, 6, 16, 41, 1, 0, 10, 40, 205, 768, 1, 0, 15, 80, 615, 4608, 27449, 1, 0, 21, 140, 1435, 16128, 192143, 1887284, 1, 0, 28, 224, 2870, 43008, 768572, 15098272, 252522481, 1, 0, 36, 336, 5166, 96768, 2305716, 67942224, 2272702329, 66376424160]

cp's OEIS Frontend

A370319 Triangle read by rows where T(n,k) is the number of labeled graphs with n vertices and k non-isolated vertices.

Table of values

List of values