A365325 - cp's OEIS frontend

A365325 Triangular array read by rows. T(n,k) is the number of labeled digraphs (with self loops allowed) on [n] containing exactly k primitive components, n>=0, 0<=k<=n.

n	a(n)
0	1
1	1
2	1
3	4
4	9
5	3
6	51
7	298
8	138
9	25
10	1831
11	40815
12	17853
13	4494
14	543
15	166930
16	23752151
17	7418420
18	1861755
19	325895
20	29281
21	36681301
22	55427713806
23	10701675348
24	2105585760
25	391017795
26	53021223
27	3781503

[1, 1, 1, 4, 9, 3, 51, 298, 138, 25, 1831, 40815, 17853, 4494, 543, 166930, 23752151, 7418420, 1861755, 325895, 29281, 36681301, 55427713806, 10701675348, 2105585760, 391017795, 53021223, 3781503]

cp's OEIS Frontend

A365325 Triangular array read by rows. T(n,k) is the number of labeled digraphs (with self loops allowed) on [n] containing exactly k primitive components, n>=0, 0<=k<=n.

Table of values

List of values