cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A210114 Floor of the expected value of number of trials until exactly three cells are empty in a random distribution of n balls in n cells.

Table of values

n a(n)
4 64
5 10
6 4
7 2
8 2
9 2
10 2
11 3
12 5
13 7
14 11
15 18
16 31
17 55
18 100
19 185
20 348
21 670
22 1311
23 2606
24 5254
25 10734
26 22196
27 46407
28 98023
29 209009
30 449580
31 974963
32 2130442
33 4688533
34 10387113
35 23156162
36 51926745
37 117090391
38 265413053

List of values

[64, 10, 4, 2, 2, 2, 2, 3, 5, 7, 11, 18, 31, 55, 100, 185, 348, 670, 1311, 2606, 5254, 10734, 22196, 46407, 98023, 209009, 449580, 974963, 2130442, 4688533, 10387113, 23156162, 51926745, 117090391, 265413053]