A350914 - cp's OEIS frontend

A350914 Triangle read by rows: T(n,k) is the number of unlabeled weakly connected oriented graphs with n arcs and k vertices, k = 1..n+1.

n	a(n)
0	1
1	0
2	1
3	0
4	0
5	3
6	0
7	0
8	2
9	8
10	0
11	0
12	0
13	12
14	27
15	0
16	0
17	0
18	10
19	68
20	91
21	0
22	0
23	0
24	4
25	127
26	395
27	350
28	0
29	0
30	0
31	0
32	144
33	1144
34	2170
35	1376
36	0
37	0
38	0
39	0
40	107
41	2393
42	9139
43	11934
44	5743
45	0
46	0
47	0
48	0
49	50
50	3767
51	28606
52	67104
53	64892
54	24635
55	0
56	0
57	0
58	0
59	12
60	4500
61	71583
62	288331
63	468702
64	352286
65	108968

[1, 0, 1, 0, 0, 3, 0, 0, 2, 8, 0, 0, 0, 12, 27, 0, 0, 0, 10, 68, 91, 0, 0, 0, 4, 127, 395, 350, 0, 0, 0, 0, 144, 1144, 2170, 1376, 0, 0, 0, 0, 107, 2393, 9139, 11934, 5743, 0, 0, 0, 0, 50, 3767, 28606, 67104, 64892, 24635, 0, 0, 0, 0, 12, 4500, 71583, 288331, 468702, 352286, 108968]

cp's OEIS Frontend

A350914 Triangle read by rows: T(n,k) is the number of unlabeled weakly connected oriented graphs with n arcs and k vertices, k = 1..n+1.

Table of values

List of values