A035347 - cp's OEIS frontend

A035347 Triangle of a(n,k) = number of minimal covers of an n-set that cover k points of that set uniquely (n >= 1, k >= 1).

n	a(n)
1	1
2	0
3	2
4	0
5	3
6	5
7	0
8	6
9	28
10	15
11	0
12	10
13	190
14	210
15	52
16	0
17	15
18	1340
19	3360
20	1506
21	203
22	0
23	21
24	9065
25	60270
26	48321
27	10871
28	877
29	0
30	28
31	57512
32	1132880
33	1820056
34	636300
35	80592
36	4140
37	0
38	36
39	344316
40	21067452
41	76834926
42	45455676
43	8081928
44	618939
45	21147
46	0
47	45

[1, 0, 2, 0, 3, 5, 0, 6, 28, 15, 0, 10, 190, 210, 52, 0, 15, 1340, 3360, 1506, 203, 0, 21, 9065, 60270, 48321, 10871, 877, 0, 28, 57512, 1132880, 1820056, 636300, 80592, 4140, 0, 36, 344316, 21067452, 76834926, 45455676, 8081928, 618939, 21147, 0, 45]

cp's OEIS Frontend

A035347 Triangle of a(n,k) = number of minimal covers of an n-set that cover k points of that set uniquely (n >= 1, k >= 1).

Table of values

List of values