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.

A065457 Period of the flip-riffle shuffle function on a deck of 2n cards.

Table of values

n a(n)
1 2
2 2
3 4
4 6
5 6
6 10
7 12
8 4
9 8
10 18
11 6
12 22
13 20
14 18
15 28
16 10
17 10
18 12
19 36
20 12
21 20
22 14
23 12
24 46
25 42
26 8
27 52
28 20
29 18
30 58
31 60
32 6
33 12
34 66
35 22
36 70
37 18
38 20
39 30
40 78
41 54
42 82
43 8
44 28
45 22
46 12
47 10
48 36
49 48
50 30
51 100
52 102
53 12
54 106
55 36
56 36
57 28
58 44
59 12
60 24
61 110
62 20
63 100
64 14
65 14
66 130
67 18

List of values

[2, 2, 4, 6, 6, 10, 12, 4, 8, 18, 6, 22, 20, 18, 28, 10, 10, 12, 36, 12, 20, 14, 12, 46, 42, 8, 52, 20, 18, 58, 60, 6, 12, 66, 22, 70, 18, 20, 30, 78, 54, 82, 8, 28, 22, 12, 10, 36, 48, 30, 100, 102, 12, 106, 36, 36, 28, 44, 12, 24, 110, 20, 100, 14, 14, 130, 18]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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