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.

A336105 Number of permutations of the prime indices of 2^n - 1.

Table of values

n a(n)
1 1
2 1
3 1
4 2
5 1
6 3
7 1
8 6
9 2
10 6
11 2
12 60
13 1
14 6
15 6
16 24
17 1
18 120
19 1
20 360
21 12
22 24
23 2
24 2520
25 6
26 6
27 6
28 720
29 6
30 2520
31 1
32 120
33 24
34 6
35 24
36 604800
37 2
38 6
39 24
40 20160
41 2
42 10080
43 6
44 5040
45 720
46 24
47 6
48 1814400
49 2
50 5040
51 120
52 5040
53 6
54 15120
55 720
56 40320
57 24
58 720
59 2

List of values

[1, 1, 1, 2, 1, 3, 1, 6, 2, 6, 2, 60, 1, 6, 6, 24, 1, 120, 1, 360, 12, 24, 2, 2520, 6, 6, 6, 720, 6, 2520, 1, 120, 24, 6, 24, 604800, 2, 6, 24, 20160, 2, 10080, 6, 5040, 720, 24, 6, 1814400, 2, 5040, 120, 5040, 6, 15120, 720, 40320, 24, 720, 2]