A198261 - cp's OEIS frontend

A198261 Triangular array read by rows T(n,k) is the number of simple labeled graphs on n nodes with exactly k isolated nodes, 0<=k<=n.

n	a(n)
0	1
1	0
2	1
3	1
4	0
5	1
6	4
7	3
8	0
9	1
10	41
11	16
12	6
13	0
14	1
15	768
16	205
17	40
18	10
19	0
20	1
21	27449
22	4608
23	615
24	80
25	15
26	0
27	1
28	1887284
29	192143
30	16128
31	1435
32	140
33	21
34	0
35	1
36	252522481
37	15098272
38	768572
39	43008
40	2870
41	224
42	28
43	0
44	1

[1, 0, 1, 1, 0, 1, 4, 3, 0, 1, 41, 16, 6, 0, 1, 768, 205, 40, 10, 0, 1, 27449, 4608, 615, 80, 15, 0, 1, 1887284, 192143, 16128, 1435, 140, 21, 0, 1, 252522481, 15098272, 768572, 43008, 2870, 224, 28, 0, 1]

cp's OEIS Frontend

A198261 Triangular array read by rows T(n,k) is the number of simple labeled graphs on n nodes with exactly k isolated nodes, 0<=k<=n.

Table of values

List of values