A350795 - cp's OEIS frontend

A350795 Triangle read by rows: T(n,k) is the number of digraphs on n unlabeled nodes with k arcs and a global source and sink, n >= 1, k = 0..max(1,n-1)*(n-2)+1.

n	a(n)
1	1
2	0
3	1
4	0
5	0
6	1
7	1
8	0
9	0
10	0
11	1
12	6
13	8
14	4
15	1
16	0
17	0
18	0
19	0
20	1
21	16
22	70
23	140
24	159
25	113
26	53
27	17
28	4
29	1
30	0
31	0
32	0
33	0
34	0
35	1
36	33
37	313
38	1439
39	3941
40	7297
41	9750
42	9840
43	7717
44	4788
45	2377
46	946
47	309
48	80
49	18
50	4
51	1
52	0
53	0
54	0
55	0
56	0
57	0
58	1
59	58
60	998
61	8447
62	43269
63	152135
64	396011

[1, 0, 1, 0, 0, 1, 1, 0, 0, 0, 1, 6, 8, 4, 1, 0, 0, 0, 0, 1, 16, 70, 140, 159, 113, 53, 17, 4, 1, 0, 0, 0, 0, 0, 1, 33, 313, 1439, 3941, 7297, 9750, 9840, 7717, 4788, 2377, 946, 309, 80, 18, 4, 1, 0, 0, 0, 0, 0, 0, 1, 58, 998, 8447, 43269, 152135, 396011]

cp's OEIS Frontend

A350795 Triangle read by rows: T(n,k) is the number of digraphs on n unlabeled nodes with k arcs and a global source and sink, n >= 1, k = 0..max(1,n-1)*(n-2)+1.

Table of values

List of values