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.

A257690 Permutation of natural numbers: a(1) = 1, a(lucky(n)) = (2*a(n))-1, a(unlucky(n)) = 2*n, where lucky(n) = n-th lucky number A000959, unlucky(n) = n-th unlucky number A050505.

Table of values

n a(n)
1 1
2 2
3 3
4 4
5 6
6 8
7 5
8 12
9 7
10 16
11 10
12 24
13 11
14 14
15 15
16 32
17 20
18 48
19 22
20 28
21 9
22 30
23 64
24 40
25 23
26 96
27 44
28 56
29 18
30 60
31 13
32 128
33 31
34 80
35 46
36 192
37 19
38 88
39 112
40 36
41 120
42 26
43 47
44 256
45 62
46 160
47 92
48 384
49 21
50 38
51 27
52 176
53 224
54 72
55 240
56 52
57 94
58 512
59 124
60 320
61 184
62 768
63 29
64 42
65 76
66 54
67 63
68 352
69 39
70 448
71 144
72 480
73 95
74 104
75 43
76 188
77 1024
78 248
79 55

List of values

[1, 2, 3, 4, 6, 8, 5, 12, 7, 16, 10, 24, 11, 14, 15, 32, 20, 48, 22, 28, 9, 30, 64, 40, 23, 96, 44, 56, 18, 60, 13, 128, 31, 80, 46, 192, 19, 88, 112, 36, 120, 26, 47, 256, 62, 160, 92, 384, 21, 38, 27, 176, 224, 72, 240, 52, 94, 512, 124, 320, 184, 768, 29, 42, 76, 54, 63, 352, 39, 448, 144, 480, 95, 104, 43, 188, 1024, 248, 55]