A369195 - cp's OEIS frontend

A369195 Irregular triangle read by rows where T(n,k) is the number of labeled connected loop-graphs covering n vertices with k edges.

n	a(n)
0	1
1	0
2	1
3	0
4	1
5	2
6	1
7	0
8	0
9	3
10	10
11	12
12	6
13	1
14	0
15	0
16	0
17	16
18	79
19	162
20	179
21	116
22	45
23	10
24	1
25	0
26	0
27	0
28	0
29	125
30	847
31	2565
32	4615
33	5540
34	4720
35	2948
36	1360
37	455
38	105
39	15
40	1
41	0
42	0
43	0
44	0
45	0
46	1296
47	11436
48	47100
49	121185
50	220075
51	301818
52	325578
53	282835
54	200115
55	115560
56	54168
57	20343
58	5985
59	1330
60	210
61	21
62	1

[1, 0, 1, 0, 1, 2, 1, 0, 0, 3, 10, 12, 6, 1, 0, 0, 0, 16, 79, 162, 179, 116, 45, 10, 1, 0, 0, 0, 0, 125, 847, 2565, 4615, 5540, 4720, 2948, 1360, 455, 105, 15, 1, 0, 0, 0, 0, 0, 1296, 11436, 47100, 121185, 220075, 301818, 325578, 282835, 200115, 115560, 54168, 20343, 5985, 1330, 210, 21, 1]

cp's OEIS Frontend

A369195 Irregular triangle read by rows where T(n,k) is the number of labeled connected loop-graphs covering n vertices with k edges.

Table of values

List of values