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.

A331364 If the set of nonzero digits of n in some base of the form 2^2^k (with k >= 0) has exactly two elements, let b be the least such base and u and v the corresponding two nonzero digits; the base b representation of a(n) is obtained by replacing the u's by v's and vice versa in the base b representation of n; otherwise a(n) = n.

Table of values

n a(n)
0 0
1 1
2 2
3 3
4 4
5 5
6 9
7 13
8 8
9 6
10 10
11 14
12 12
13 7
14 11
15 15
16 16
17 17
18 33
19 49
20 65
21 81
22 41
23 61
24 36
25 38
26 37
27 177
28 52
29 55
30 225
31 53
32 32
33 18
34 34
35 50
36 24
37 26
38 25
39 114
40 130
41 22
42 162
43 62
44 56
45 210
46 59
47 58
48 48
49 19
50 35
51 51
52 28
53 31
54 99
55 29
56 44
57 147
58 47
59 46
60 195
61 23
62 43
63 243
64 64

List of values

[0, 1, 2, 3, 4, 5, 9, 13, 8, 6, 10, 14, 12, 7, 11, 15, 16, 17, 33, 49, 65, 81, 41, 61, 36, 38, 37, 177, 52, 55, 225, 53, 32, 18, 34, 50, 24, 26, 25, 114, 130, 22, 162, 62, 56, 210, 59, 58, 48, 19, 35, 51, 28, 31, 99, 29, 44, 147, 47, 46, 195, 23, 43, 243, 64]

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