A369199 - cp's OEIS frontend

A369199 Irregular triangle read by rows where T(n,k) is the number of labeled loop-graphs covering n vertices with k edges.

n	a(n)
0	1
1	0
2	1
3	0
4	1
5	3
6	1
7	0
8	0
9	6
10	17
11	15
12	6
13	1
14	0
15	0
16	3
17	46
18	150
19	228
20	206
21	120
22	45
23	10
24	1
25	0
26	0
27	0
28	45
29	465
30	1803
31	3965
32	5835
33	6210
34	4955
35	2998
36	1365
37	455
38	105
39	15
40	1
41	0
42	0
43	0
44	15
45	645
46	5991
47	27364
48	79470
49	165555
50	264050
51	334713
52	344526
53	291200
54	202860
55	116190
56	54258
57	20349
58	5985
59	1330
60	210
61	21
62	1

[1, 0, 1, 0, 1, 3, 1, 0, 0, 6, 17, 15, 6, 1, 0, 0, 3, 46, 150, 228, 206, 120, 45, 10, 1, 0, 0, 0, 45, 465, 1803, 3965, 5835, 6210, 4955, 2998, 1365, 455, 105, 15, 1, 0, 0, 0, 15, 645, 5991, 27364, 79470, 165555, 264050, 334713, 344526, 291200, 202860, 116190, 54258, 20349, 5985, 1330, 210, 21, 1]

cp's OEIS Frontend

A369199 Irregular triangle read by rows where T(n,k) is the number of labeled loop-graphs covering n vertices with k edges.

Table of values

List of values