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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.

A210024 Floor of the expected value of number of trials until all cells are occupied in a random distribution of 2n balls in n cells.

Table of values

n a(n)
1 1
2 1
3 1
4 1
5 1
6 2
7 2
8 3
9 3
10 4
11 5
12 6
13 7
14 9
15 11
16 13
17 16
18 19
19 23
20 27
21 33
22 39
23 47
24 57
25 68
26 81
27 97
28 116
29 139
30 167
31 199
32 239
33 286
34 342
35 409
36 489
37 585
38 700
39 838
40 1002
41 1199
42 1434
43 1716
44 2053
45 2456
46 2938
47 3515
48 4205
49 5030
50 6018
51 7199
52 8612
53 10302
54 12325
55 14744
56 17638

List of values

[1, 1, 1, 1, 1, 2, 2, 3, 3, 4, 5, 6, 7, 9, 11, 13, 16, 19, 23, 27, 33, 39, 47, 57, 68, 81, 97, 116, 139, 167, 199, 239, 286, 342, 409, 489, 585, 700, 838, 1002, 1199, 1434, 1716, 2053, 2456, 2938, 3515, 4205, 5030, 6018, 7199, 8612, 10302, 12325, 14744, 17638]