A361579 - cp's OEIS frontend

A361579 Triangular array read by rows. T(n,k) is the number of labeled digraphs on [n] with exactly k source-like components, n >= 0, 0 <= k <= n.

n	a(n)
0	1
1	0
2	1
3	0
4	3
5	1
6	0
7	51
8	12
9	1
10	0
11	3614
12	447
13	34
14	1
15	0
16	991930
17	53675
18	2885
19	85
20	1
21	0
22	1051469032
23	21514470
24	741455
25	16665
26	201
27	1
28	0
29	4366988803688
30	30405612790
31	642187105
32	9816380
33	90678
34	462
35	1
36	0
37	71895397383029040
38	160152273169644
39	2024633081100
40	19625842425
41	122330544
42	474138
43	1044
44	1

[1, 0, 1, 0, 3, 1, 0, 51, 12, 1, 0, 3614, 447, 34, 1, 0, 991930, 53675, 2885, 85, 1, 0, 1051469032, 21514470, 741455, 16665, 201, 1, 0, 4366988803688, 30405612790, 642187105, 9816380, 90678, 462, 1, 0, 71895397383029040, 160152273169644, 2024633081100, 19625842425, 122330544, 474138, 1044, 1]

cp's OEIS Frontend

A361579 Triangular array read by rows. T(n,k) is the number of labeled digraphs on [n] with exactly k source-like components, n >= 0, 0 <= k <= n.

Table of values

List of values