A123534 - cp's OEIS frontend

A123534 Triangular array T(n,k) giving number of 2-connected graphs with n labeled nodes and k edges (n >= 3, n <= k <= n(n-1)/2).

n	a(n)
3	1
4	3
5	6
6	1
7	12
8	70
9	100
10	45
11	10
12	1
13	60
14	720
15	2445
16	3535
17	2697
18	1335
19	455
20	105
21	15
22	1
23	360
24	7560
25	46830
26	133581
27	216951
28	232820
29	183540
30	111765
31	53627
32	20307
33	5985
34	1330
35	210
36	21
37	1
38	2520
39	84000
40	835800
41	3940440
42	10908688
43	20317528

[1, 3, 6, 1, 12, 70, 100, 45, 10, 1, 60, 720, 2445, 3535, 2697, 1335, 455, 105, 15, 1, 360, 7560, 46830, 133581, 216951, 232820, 183540, 111765, 53627, 20307, 5985, 1330, 210, 21, 1, 2520, 84000, 835800, 3940440, 10908688, 20317528]

cp's OEIS Frontend

A123534 Triangular array T(n,k) giving number of 2-connected graphs with n labeled nodes and k edges (n >= 3, n <= k <= n(n-1)/2).

Table of values

List of values