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.

A269377 Tree of Lucky sieve: a(0) = 1, a(1) = 2; after which a(2n) = A269369(a(n)), a(2n+1) = 2*a(n).

Table of values

n a(n)
0 1
1 2
2 3
3 4
4 7
5 6
6 5
7 8
8 9
9 14
10 11
11 12
12 19
13 10
14 17
15 16
16 13
17 18
18 35
19 28
20 39
21 22
22 29
23 24
24 27
25 38
26 23
27 20
28 61
29 34
30 41
31 32
32 15
33 26
34 47
35 36
36 123
37 70
38 77
39 56
40 57
41 78
42 59
43 44
44 103
45 58
46 65
47 48
48 45
49 54
50 107
51 76
52 81
53 46
54 53
55 40
56 91
57 122
58 95
59 68
60 145
61 82
62 89
63 64
64 21
65 30
66 71
67 52
68 165
69 94
70 101
71 72
72 183
73 246
74 203
75 140
76 271
77 154
78 161
79 112
80 97

List of values

[1, 2, 3, 4, 7, 6, 5, 8, 9, 14, 11, 12, 19, 10, 17, 16, 13, 18, 35, 28, 39, 22, 29, 24, 27, 38, 23, 20, 61, 34, 41, 32, 15, 26, 47, 36, 123, 70, 77, 56, 57, 78, 59, 44, 103, 58, 65, 48, 45, 54, 107, 76, 81, 46, 53, 40, 91, 122, 95, 68, 145, 82, 89, 64, 21, 30, 71, 52, 165, 94, 101, 72, 183, 246, 203, 140, 271, 154, 161, 112, 97]