A369931 - cp's OEIS frontend

A369931 Triangle read by rows: T(n,k) is the number of labeled simple graphs with n edges and k vertices and without endpoints or isolated vertices.

n	a(n)
1	0
2	0
3	0
4	0
5	0
6	1
7	0
8	0
9	0
10	3
11	0
12	0
13	0
14	6
15	12
16	0
17	0
18	0
19	1
20	85
21	70
22	0
23	0
24	0
25	0
26	100
27	990
28	465
29	0
30	0
31	0
32	0
33	45
34	2805
35	11550
36	3507
37	0
38	0
39	0
40	0
41	10
42	3595
43	59990
44	140420
45	30016
46	0
47	0
48	0
49	0
50	1
51	2697
52	147441
53	1174670
54	1802682
55	286884
56	0
57	0
58	0
59	0
60	0
61	1335
62	222516
63	4710300
64	22467312
65	24556140
66	3026655

[0, 0, 0, 0, 0, 1, 0, 0, 0, 3, 0, 0, 0, 6, 12, 0, 0, 0, 1, 85, 70, 0, 0, 0, 0, 100, 990, 465, 0, 0, 0, 0, 45, 2805, 11550, 3507, 0, 0, 0, 0, 10, 3595, 59990, 140420, 30016, 0, 0, 0, 0, 1, 2697, 147441, 1174670, 1802682, 286884, 0, 0, 0, 0, 0, 1335, 222516, 4710300, 22467312, 24556140, 3026655]

cp's OEIS Frontend

A369931 Triangle read by rows: T(n,k) is the number of labeled simple graphs with n edges and k vertices and without endpoints or isolated vertices.

Table of values

List of values