A136564 - cp's OEIS frontend

A136564 Array read by rows: T(n,k) is the number of directed multigraphs with loops with n arcs, k vertices, and no vertex of degree 0.

n	a(n)
1	1
2	1
3	1
4	5
5	4
6	1
7	1
8	9
9	21
10	16
11	4
12	1
13	1
14	18
15	71
16	108
17	71
18	22
19	4
20	1
21	1
22	27
23	194
24	491
25	557
26	326
27	101
28	22
29	4
30	1
31	1
32	43
33	476
34	1903
35	3353
36	3062
37	1587
38	497
39	111
40	22
41	4
42	1
43	1
44	59
45	1030
46	6298
47	16644
48	22352
49	17035
50	7982
51	2433
52	555
53	111
54	22
55	4
56	1
57	1
58	84
59	2095
60	18823
61	72064

[1, 1, 1, 5, 4, 1, 1, 9, 21, 16, 4, 1, 1, 18, 71, 108, 71, 22, 4, 1, 1, 27, 194, 491, 557, 326, 101, 22, 4, 1, 1, 43, 476, 1903, 3353, 3062, 1587, 497, 111, 22, 4, 1, 1, 59, 1030, 6298, 16644, 22352, 17035, 7982, 2433, 555, 111, 22, 4, 1, 1, 84, 2095, 18823, 72064]

cp's OEIS Frontend

A136564 Array read by rows: T(n,k) is the number of directed multigraphs with loops with n arcs, k vertices, and no vertex of degree 0.

Table of values

List of values