A123527 - cp's OEIS frontend

A123527 Triangular array T(n,k) giving number of connected graphs with n labeled nodes and k edges (n >= 1, n-1 <= k <= n(n-1)/2).

n	a(n)
1	1
2	1
3	3
4	1
5	16
6	15
7	6
8	1
9	125
10	222
11	205
12	120
13	45
14	10
15	1
16	1296
17	3660
18	5700
19	6165
20	4945
21	2997
22	1365
23	455
24	105
25	15
26	1
27	16807
28	68295
29	156555
30	258125
31	331506
32	343140
33	290745
34	202755
35	116175
36	54257
37	20349
38	5985
39	1330
40	210
41	21
42	1
43	262144
44	1436568

[1, 1, 3, 1, 16, 15, 6, 1, 125, 222, 205, 120, 45, 10, 1, 1296, 3660, 5700, 6165, 4945, 2997, 1365, 455, 105, 15, 1, 16807, 68295, 156555, 258125, 331506, 343140, 290745, 202755, 116175, 54257, 20349, 5985, 1330, 210, 21, 1, 262144, 1436568]

cp's OEIS Frontend

A123527 Triangular array T(n,k) giving number of connected graphs with n labeled nodes and k edges (n >= 1, n-1 <= k <= n(n-1)/2).

Table of values

List of values