A057965 - cp's OEIS frontend

A057965 Triangle T(n,k) of number of minimal 4-covers of a labeled n-set that cover k points of that set uniquely (k=4,..,n).

n	a(n)
4	1
5	55
6	10
7	1815
8	660
9	65
10	46585
11	25410
12	5005
13	350
14	1024870
15	745360
16	220220
17	30800
18	1701
19	20292426
20	18447660
21	7267260
22	1524600
23	168399
24	7770
25	372027810
26	405848520
27	199849650
28	55902000
29	9261945
30	854700
31	34105
32	6430766430

[1, 55, 10, 1815, 660, 65, 46585, 25410, 5005, 350, 1024870, 745360, 220220, 30800, 1701, 20292426, 18447660, 7267260, 1524600, 168399, 7770, 372027810, 405848520, 199849650, 55902000, 9261945, 854700, 34105, 6430766430]

cp's OEIS Frontend

A057965 Triangle T(n,k) of number of minimal 4-covers of a labeled n-set that cover k points of that set uniquely (k=4,..,n).

Table of values

List of values