A117279 - cp's OEIS frontend

A117279 Triangle read by rows: T(n,k) is number of labeled bipartite graphs with n nodes and k edges.

n	a(n)
0	1
1	1
2	1
3	1
4	1
5	3
6	3
7	1
8	6
9	15
10	16
11	3
12	1
13	10
14	45
15	110
16	140
17	60
18	10
19	1
20	15
21	105
22	435
23	1125
24	1701
25	1200
26	480
27	105
28	10
29	1
30	21
31	210
32	1295
33	5355
34	14952
35	26572
36	26670
37	17535
38	7840
39	2331
40	420
41	35
42	1
43	28
44	378
45	3220
46	19075
47	81228
48	246414
49	507424
50	666015
51	620900
52	431368

[1, 1, 1, 1, 1, 3, 3, 1, 6, 15, 16, 3, 1, 10, 45, 110, 140, 60, 10, 1, 15, 105, 435, 1125, 1701, 1200, 480, 105, 10, 1, 21, 210, 1295, 5355, 14952, 26572, 26670, 17535, 7840, 2331, 420, 35, 1, 28, 378, 3220, 19075, 81228, 246414, 507424, 666015, 620900, 431368]

cp's OEIS Frontend

A117279 Triangle read by rows: T(n,k) is number of labeled bipartite graphs with n nodes and k edges.

Table of values

List of values