A192100 - cp's OEIS frontend

A192100 Table read by rows of numbers of unordered pairs of partitions of n-element set that have Rand distance k (n>=2, 1 <= k <= n(n-1)/2).

n	a(n)
1	1
2	3
3	6
4	1
5	12
6	30
7	32
8	24
9	6
10	1
11	50
12	150
13	280
14	300
15	240
16	220
17	60
18	15
19	10
20	1
21	225
22	780
23	1720
24	3360
25	3426
26	4100
27	2400
28	2700
29	1075
30	471
31	150
32	35
33	45
34	15
35	1
36	1092
37	4200
38	10885
39	25200
40	42672
41	56889
42	60165
43	57750
44	46585
45	31374
46	24528
47	14140
48	4725
49	1890
50	1302
51	252
52	210
53	140
54	105
55	21
56	1

[1, 3, 6, 1, 12, 30, 32, 24, 6, 1, 50, 150, 280, 300, 240, 220, 60, 15, 10, 1, 225, 780, 1720, 3360, 3426, 4100, 2400, 2700, 1075, 471, 150, 35, 45, 15, 1, 1092, 4200, 10885, 25200, 42672, 56889, 60165, 57750, 46585, 31374, 24528, 14140, 4725, 1890, 1302, 252, 210, 140, 105, 21, 1]

cp's OEIS Frontend

A192100 Table read by rows of numbers of unordered pairs of partitions of n-element set that have Rand distance k (n>=2, 1 <= k <= n(n-1)/2).

Table of values

List of values