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.

A057505 Signature-permutation of a Catalan Automorphism: Donaghey's map M acting on the parenthesizations encoded by A014486.

Table of values

n a(n)
0 0
1 1
2 3
3 2
4 8
5 7
6 5
7 6
8 4
9 22
10 21
11 18
12 20
13 17
14 13
15 12
16 15
17 19
18 16
19 10
20 11
21 14
22 9
23 64
24 63
25 59
26 62
27 58
28 50
29 49
30 55
31 61
32 57
33 46
34 48
35 54
36 45
37 36
38 35
39 32
40 34
41 31
42 41
43 40
44 52
45 60
46 56
47 43
48 47
49 53
50 44
51 27
52 26
53 29
54 33
55 30
56 38
57 39
58 51
59 42
60 24
61 25
62 28
63 37
64 23
65 196
66 195
67 190
68 194
69 189

List of values

[0, 1, 3, 2, 8, 7, 5, 6, 4, 22, 21, 18, 20, 17, 13, 12, 15, 19, 16, 10, 11, 14, 9, 64, 63, 59, 62, 58, 50, 49, 55, 61, 57, 46, 48, 54, 45, 36, 35, 32, 34, 31, 41, 40, 52, 60, 56, 43, 47, 53, 44, 27, 26, 29, 33, 30, 38, 39, 51, 42, 24, 25, 28, 37, 23, 196, 195, 190, 194, 189]

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

Content is available under The OEIS End-User License Agreement.