A361404 - cp's OEIS frontend

A361404 Triangle read by rows: T(n,k) is the number of graphs with loops on n unlabeled vertices with k loops.

n	a(n)
0	1
1	1
2	1
3	2
4	2
5	2
6	4
7	6
8	6
9	4
10	11
11	20
12	28
13	20
14	11
15	34
16	90
17	148
18	148
19	90
20	34
21	156
22	544
23	1144
24	1408
25	1144
26	544
27	156
28	1044
29	5096
30	13128
31	20364
32	20364
33	13128
34	5096
35	1044
36	12346
37	79264
38	250240
39	472128
40	580656
41	472128
42	250240
43	79264
44	12346

[1, 1, 1, 2, 2, 2, 4, 6, 6, 4, 11, 20, 28, 20, 11, 34, 90, 148, 148, 90, 34, 156, 544, 1144, 1408, 1144, 544, 156, 1044, 5096, 13128, 20364, 20364, 13128, 5096, 1044, 12346, 79264, 250240, 472128, 580656, 472128, 250240, 79264, 12346]

cp's OEIS Frontend

A361404 Triangle read by rows: T(n,k) is the number of graphs with loops on n unlabeled vertices with k loops.

Table of values

List of values