A210113 - cp's OEIS frontend

A210113 Floor of the expected value of number of trials until exactly two cells are empty in a random distribution of n balls in n cells.

n	a(n)
3	9
4	3
5	2
6	1
7	2
8	3
9	4
10	7
11	12
12	21
13	40
14	75
15	147
16	292
17	594
18	1229
19	2582
20	5499
21	11859
22	25868
23	57008
24	126814
25	284523
26	643401
27	1465511
28	3360493
29	7753730
30	17993787
31	41982506
32	98445184
33	231932762
34	548839352
35	1304155087

[9, 3, 2, 1, 2, 3, 4, 7, 12, 21, 40, 75, 147, 292, 594, 1229, 2582, 5499, 11859, 25868, 57008, 126814, 284523, 643401, 1465511, 3360493, 7753730, 17993787, 41982506, 98445184, 231932762, 548839352, 1304155087]

cp's OEIS Frontend

A210113 Floor of the expected value of number of trials until exactly two cells are empty in a random distribution of n balls in n cells.

Table of values

List of values