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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.

A127387 Signature-permutation of a Catalan automorphism, a self-inverse variant of A127377.

Table of values

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

List of values

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

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

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