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.

A060505 a(n) = floor(2^n/(n^2)).

Table of values

n a(n)
1 2
2 1
3 0
4 1
5 1
6 1
7 2
8 4
9 6
10 10
11 16
12 28
13 48
14 83
15 145
16 256
17 453
18 809
19 1452
20 2621
21 4755
22 8665
23 15857
24 29127
25 53687
26 99273
27 184112
28 342392
29 638372
30 1193046
31 2234634
32 4194304
33 7887910
34 14861478
35 28048766
36 53024287
37 100393684
38 190358661
39 361443664

List of values

[2, 1, 0, 1, 1, 1, 2, 4, 6, 10, 16, 28, 48, 83, 145, 256, 453, 809, 1452, 2621, 4755, 8665, 15857, 29127, 53687, 99273, 184112, 342392, 638372, 1193046, 2234634, 4194304, 7887910, 14861478, 28048766, 53024287, 100393684, 190358661, 361443664]