A327072 - cp's OEIS frontend

A327072 Triangle read by rows where T(n,k) is the number of labeled simple connected graphs with n vertices and exactly k bridges.

n	a(n)
0	1
1	1
2	0
3	0
4	1
5	0
6	1
7	0
8	3
9	0
10	10
11	12
12	0
13	16
14	0
15	253
16	200
17	150
18	0
19	125
20	0
21	11968
22	7680
23	3600
24	2160
25	0
26	1296
27	0
28	1047613
29	506856
30	190365
31	68600
32	36015
33	0
34	16807
35	0
36	169181040
37	58934848
38	16353792
39	4695040
40	1433600
41	688128
42	0
43	262144
44	0
45	51017714393
46	12205506096
47	2397804444
48	500828832
49	121706550
50	33067440
51	14880348
52	0
53	4782969
54	0

[1, 1, 0, 0, 1, 0, 1, 0, 3, 0, 10, 12, 0, 16, 0, 253, 200, 150, 0, 125, 0, 11968, 7680, 3600, 2160, 0, 1296, 0, 1047613, 506856, 190365, 68600, 36015, 0, 16807, 0, 169181040, 58934848, 16353792, 4695040, 1433600, 688128, 0, 262144, 0, 51017714393, 12205506096, 2397804444, 500828832, 121706550, 33067440, 14880348, 0, 4782969, 0]

cp's OEIS Frontend

A327072 Triangle read by rows where T(n,k) is the number of labeled simple connected graphs with n vertices and exactly k bridges.

Table of values

List of values