A052296 - cp's OEIS frontend

A052296 Triangle read by rows: T(n,k) = number of labeled digraphs with n nodes and k arcs and without directed paths of length >=2, with 0 <= k <= floor(n^2/4).

n	a(n)
0	1
1	1
2	1
3	2
4	1
5	6
6	6
7	1
8	12
9	36
10	32
11	6
12	1
13	20
14	120
15	280
16	280
17	120
18	20
19	1
20	30
21	300
22	1320
23	2910
24	3492
25	2400
26	960
27	210
28	20
29	1
30	42
31	630
32	4480
33	17220
34	39144
35	56294
36	53760
37	35070
38	15680
39	4662
40	840
41	70
42	1
43	56
44	1176
45	12320
46	73220
47	269136
48	654304
49	1108928
50	1362900

[1, 1, 1, 2, 1, 6, 6, 1, 12, 36, 32, 6, 1, 20, 120, 280, 280, 120, 20, 1, 30, 300, 1320, 2910, 3492, 2400, 960, 210, 20, 1, 42, 630, 4480, 17220, 39144, 56294, 53760, 35070, 15680, 4662, 840, 70, 1, 56, 1176, 12320, 73220, 269136, 654304, 1108928, 1362900]

cp's OEIS Frontend

A052296 Triangle read by rows: T(n,k) = number of labeled digraphs with n nodes and k arcs and without directed paths of length >=2, with 0 <= k <= floor(n^2/4).

Table of values

List of values