A368836 - cp's OEIS frontend

A368836 Triangle read by rows where T(n,k) is the number of unlabeled loop-graphs on up to n vertices with k loops and n-k non-loops.

n	a(n)
0	1
1	0
2	1
3	0
4	1
5	1
6	1
7	2
8	2
9	1
10	2
11	6
12	6
13	2
14	1
15	6
16	17
17	18
18	8
19	2
20	1
21	21
22	52
23	58
24	30
25	9
26	2
27	1
28	65
29	173
30	191
31	107
32	37
33	9
34	2
35	1
36	221
37	585
38	666
39	393
40	148
41	39
42	9
43	2
44	1
45	771
46	2064
47	2383
48	1493
49	589
50	168
51	40
52	9
53	2
54	1
55	2769
56	7520
57	8847
58	5765
59	2418
60	718
61	176
62	40
63	9
64	2
65	1

[1, 0, 1, 0, 1, 1, 1, 2, 2, 1, 2, 6, 6, 2, 1, 6, 17, 18, 8, 2, 1, 21, 52, 58, 30, 9, 2, 1, 65, 173, 191, 107, 37, 9, 2, 1, 221, 585, 666, 393, 148, 39, 9, 2, 1, 771, 2064, 2383, 1493, 589, 168, 40, 9, 2, 1, 2769, 7520, 8847, 5765, 2418, 718, 176, 40, 9, 2, 1]

cp's OEIS Frontend

A368836 Triangle read by rows where T(n,k) is the number of unlabeled loop-graphs on up to n vertices with k loops and n-k non-loops.

Table of values

List of values