A372176 - cp's OEIS frontend

A372176 Irregular triangle read by rows where T(n,k) is the number of labeled simple graphs on n vertices with exactly 2k directed cycles of length > 2.

n	a(n)
0	1
1	1
2	2
3	7
4	1
5	38
6	19
7	0
8	6
9	0
10	0
11	0
12	1
13	291
14	317
15	15
16	220
17	0
18	0
19	70
20	55
21	0
22	0
23	0
24	0
25	30
26	15
27	0
28	0
29	0
30	0
31	0
32	0
33	0
34	0
35	10
36	0
37	0
38	0
39	0
40	0
41	0
42	0
43	0
44	0
45	0
46	0
47	0
48	0
49	0
50	1

[1, 1, 2, 7, 1, 38, 19, 0, 6, 0, 0, 0, 1, 291, 317, 15, 220, 0, 0, 70, 55, 0, 0, 0, 0, 30, 15, 0, 0, 0, 0, 0, 0, 0, 0, 10, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1]

cp's OEIS Frontend

A372176 Irregular triangle read by rows where T(n,k) is the number of labeled simple graphs on n vertices with exactly 2k directed cycles of length > 2.

Table of values

List of values

n	a(n)
0	1
1	1
2	2
3	7
4	1
5	38
6	19
7	0
8	6
9	0
10	0
11	0
12	1
13	291
14	317
15	15
16	220
17	0
18	0
19	70
20	55
21	0
22	0
23	0
24	0
25	30
26	15
27	0
28	0
29	0
30	0
31	0
32	0
33	0
34	0
35	10
36	0
37	0
38	0
39	0
40	0
41	0
42	0
43	0
44	0
45	0
46	0
47	0
48	0
49	0
50	1

n	a(n)
0	1
1	1
2	2
3	7
4	1
5	38
6	19
7	0
8	6
9	0
10	0
11	0
12	1
13	291
14	317
15	15
16	220
17	0
18	0
19	70
20	55
21	0
22	0
23	0
24	0
25	30
26	15
27	0
28	0
29	0
30	0
31	0
32	0
33	0
34	0
35	10
36	0
37	0
38	0
39	0
40	0
41	0
42	0
43	0
44	0
45	0
46	0
47	0
48	0
49	0
50	1

n	a(n)
0	1
1	1
2	2
3	7
4	1
5	38
6	19
7	0
8	6
9	0
10	0
11	0
12	1
13	291
14	317
15	15
16	220
17	0
18	0
19	70
20	55
21	0
22	0
23	0
24	0
25	30
26	15
27	0
28	0
29	0
30	0
31	0
32	0
33	0
34	0
35	10
36	0
37	0
38	0
39	0
40	0
41	0
42	0
43	0
44	0
45	0
46	0
47	0
48	0
49	0
50	1