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.

A089856 Involution of natural numbers induced by Catalan Automorphism *A089856 acting on the binary trees/parenthesizations encoded by A014486/A063171.

Table of values

n a(n)
0 0
1 1
2 2
3 3
4 4
5 5
6 8
7 7
8 6
9 9
10 10
11 11
12 12
13 13
14 21
15 22
16 20
17 17
18 18
19 19
20 16
21 14
22 15
23 23
24 24
25 25
26 26
27 27
28 28
29 29
30 30
31 31
32 32
33 33
34 34
35 35
36 36
37 58
38 59
39 62
40 63
41 64
42 57
43 61
44 54
45 45
46 46
47 55
48 48
49 49
50 50
51 56
52 60
53 53
54 44
55 47
56 51
57 42
58 37
59 38
60 52
61 43
62 39
63 40
64 41
65 65
66 66
67 67
68 68
69 69
70 70
71 71
72 72

List of values

[0, 1, 2, 3, 4, 5, 8, 7, 6, 9, 10, 11, 12, 13, 21, 22, 20, 17, 18, 19, 16, 14, 15, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 58, 59, 62, 63, 64, 57, 61, 54, 45, 46, 55, 48, 49, 50, 56, 60, 53, 44, 47, 51, 42, 37, 38, 52, 43, 39, 40, 41, 65, 66, 67, 68, 69, 70, 71, 72]

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