A304311 - cp's OEIS frontend

A304311 Triangle T(n,k) read by rows: number of bicolored connected graphs with n nodes and k nodes of the first color.

n	a(n)
0	1
1	1
2	1
3	1
4	1
5	1
6	2
7	3
8	3
9	2
10	6
11	11
12	16
13	11
14	6
15	21
16	58
17	98
18	98
19	58
20	21
21	112
22	407
23	879
24	1087
25	879
26	407
27	112
28	853
29	4306
30	11260
31	17578
32	17578
33	11260
34	4306
35	853
36	11117
37	72489
38	230505
39	436371
40	537272
41	436371
42	230505
43	72489
44	11117

[1, 1, 1, 1, 1, 1, 2, 3, 3, 2, 6, 11, 16, 11, 6, 21, 58, 98, 98, 58, 21, 112, 407, 879, 1087, 879, 407, 112, 853, 4306, 11260, 17578, 17578, 11260, 4306, 853, 11117, 72489, 230505, 436371, 537272, 436371, 230505, 72489, 11117]

cp's OEIS Frontend

A304311 Triangle T(n,k) read by rows: number of bicolored connected graphs with n nodes and k nodes of the first color.

Table of values

List of values