A059443 - cp's OEIS frontend

A059443 Triangle T(n,k) (n >= 2, k = 3..n+floor(n/2)) giving number of bicoverings of an n-set with k blocks.

n	a(n)
2	1
3	4
4	4
5	13
6	39
7	25
8	3
9	40
10	280
11	472
12	256
13	40
14	121
15	1815
16	6185
17	7255
18	3306
19	535
20	15
21	364
22	11284
23	70700
24	149660
25	131876
26	51640
27	8456
28	420
29	1093
30	68859
31	759045
32	2681063
33	3961356
34	2771685
35	954213
36	154637
37	9730
38	105
39	3280
40	416560
41	7894992
42	44659776
43	103290096

[1, 4, 4, 13, 39, 25, 3, 40, 280, 472, 256, 40, 121, 1815, 6185, 7255, 3306, 535, 15, 364, 11284, 70700, 149660, 131876, 51640, 8456, 420, 1093, 68859, 759045, 2681063, 3961356, 2771685, 954213, 154637, 9730, 105, 3280, 416560, 7894992, 44659776, 103290096]

cp's OEIS Frontend

A059443 Triangle T(n,k) (n >= 2, k = 3..n+floor(n/2)) giving number of bicoverings of an n-set with k blocks.

Table of values

List of values