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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.

A269858 Permutation of natural numbers: a(1) = 1, a(2n) = A065090(1+a(n)), a(2n+1) = A000040(a(A268674(2n+1))).

Table of values

n a(n)
1 1
2 2
3 3
4 4
5 5
6 6
7 11
8 8
9 7
10 9
11 31
12 10
13 127
14 18
15 13
16 14
17 709
18 12
19 5381
20 15
21 19
22 45
23 52711
24 16
25 17
26 165
27 23
28 27
29 648391
30 21
31 9737333
32 22
33 29
34 856
35 41
36 20
37 174440041
38 6185
39 61
40 24
41 3657500101
42 28
43 88362852307
44 63
45 43
46 58644
47 2428095424619
48 25
49 59
50 26
51 37
52 212
53 75063692618249
54 34
55 67
56 39
57 47

List of values

[1, 2, 3, 4, 5, 6, 11, 8, 7, 9, 31, 10, 127, 18, 13, 14, 709, 12, 5381, 15, 19, 45, 52711, 16, 17, 165, 23, 27, 648391, 21, 9737333, 22, 29, 856, 41, 20, 174440041, 6185, 61, 24, 3657500101, 28, 88362852307, 63, 43, 58644, 2428095424619, 25, 59, 26, 37, 212, 75063692618249, 34, 67, 39, 47]

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

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