A046751 - cp's OEIS frontend

A046751 Triangle read by rows of number of connected graphs with n nodes and k edges (n >= 2, 1 <= k <= n(n-1)/2).

n	a(n)
2	1
3	0
4	1
5	1
6	0
7	0
8	2
9	2
10	1
11	1
12	0
13	0
14	0
15	3
16	5
17	5
18	4
19	2
20	1
21	1
22	0
23	0
24	0
25	0
26	6
27	13
28	19
29	22
30	20
31	14
32	9
33	5
34	2
35	1
36	1
37	0
38	0
39	0
40	0
41	0
42	11
43	33
44	67
45	107
46	132
47	138
48	126
49	95
50	64
51	40
52	21
53	10
54	5
55	2
56	1
57	1
58	0
59	0
60	0
61	0
62	0
63	0
64	23
65	89
66	236
67	486
68	814
69	1169
70	1454
71	1579
72	1515
73	1290
74	970
75	658
76	400
77	220
78	114

[1, 0, 1, 1, 0, 0, 2, 2, 1, 1, 0, 0, 0, 3, 5, 5, 4, 2, 1, 1, 0, 0, 0, 0, 6, 13, 19, 22, 20, 14, 9, 5, 2, 1, 1, 0, 0, 0, 0, 0, 11, 33, 67, 107, 132, 138, 126, 95, 64, 40, 21, 10, 5, 2, 1, 1, 0, 0, 0, 0, 0, 0, 23, 89, 236, 486, 814, 1169, 1454, 1579, 1515, 1290, 970, 658, 400, 220, 114]

cp's OEIS Frontend

A046751 Triangle read by rows of number of connected graphs with n nodes and k edges (n >= 2, 1 <= k <= n(n-1)/2).

Table of values

List of values