A210112 - cp's OEIS frontend

A210112 Floor of the expected value of number of trials until exactly one cell is empty in a random distribution of n balls in n cells.

n	a(n)
2	2
3	1
4	1
5	2
6	4
7	7
8	14
9	29
10	61
11	129
12	282
13	623
14	1400
15	3189
16	7347
17	17101
18	40167
19	95110
20	226841
21	544555
22	1314983
23	3192458
24	7788521
25	19086807
26	46968280
27	116019696
28	287602234
29	715281652
30	1784383956
31	4464139806

[2, 1, 1, 2, 4, 7, 14, 29, 61, 129, 282, 623, 1400, 3189, 7347, 17101, 40167, 95110, 226841, 544555, 1314983, 3192458, 7788521, 19086807, 46968280, 116019696, 287602234, 715281652, 1784383956, 4464139806]

cp's OEIS Frontend

A210112 Floor of the expected value of number of trials until exactly one cell is empty in a random distribution of n balls in n cells.

Table of values

List of values