A217653 - cp's OEIS frontend

A217653 Triangular array read by rows: T(n,k) is the number of unlabeled simple graphs with n nodes that have exactly k isolated nodes, (n>=0, 0<=k<=n).

n	a(n)
0	1
1	0
2	1
3	1
4	0
5	1
6	2
7	1
8	0
9	1
10	7
11	2
12	1
13	0
14	1
15	23
16	7
17	2
18	1
19	0
20	1
21	122
22	23
23	7
24	2
25	1
26	0
27	1
28	888
29	122
30	23
31	7
32	2
33	1
34	0
35	1
36	11302
37	888
38	122
39	23
40	7
41	2
42	1
43	0
44	1
45	262322
46	11302
47	888
48	122
49	23
50	7
51	2
52	1
53	0
54	1
55	11730500
56	262322
57	11302
58	888
59	122
60	23
61	7
62	2
63	1
64	0
65	1

[1, 0, 1, 1, 0, 1, 2, 1, 0, 1, 7, 2, 1, 0, 1, 23, 7, 2, 1, 0, 1, 122, 23, 7, 2, 1, 0, 1, 888, 122, 23, 7, 2, 1, 0, 1, 11302, 888, 122, 23, 7, 2, 1, 0, 1, 262322, 11302, 888, 122, 23, 7, 2, 1, 0, 1, 11730500, 262322, 11302, 888, 122, 23, 7, 2, 1, 0, 1]

cp's OEIS Frontend

A217653 Triangular array read by rows: T(n,k) is the number of unlabeled simple graphs with n nodes that have exactly k isolated nodes, (n>=0, 0<=k<=n).

Table of values

List of values