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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.

A384468 a(0) = 1; for n >= 1, a(n) = a(n-1)/2 if a(n-1) is even, otherwise a(n) = 2*a(n-1) + n.

Table of values

n a(n)
0 1
1 3
2 8
3 4
4 2
5 1
6 8
7 4
8 2
9 1
10 12
11 6
12 3
13 19
14 52
15 26
16 13
17 43
18 104
19 52
20 26
21 13
22 48
23 24
24 12
25 6
26 3
27 33
28 94
29 47
30 124
31 62
32 31
33 95
34 224
35 112
36 56
37 28
38 14
39 7
40 54
41 27
42 96
43 48
44 24
45 12
46 6
47 3
48 54
49 27
50 104
51 52
52 26
53 13
54 80
55 40
56 20
57 10
58 5
59 69
60 198
61 99
62 260
63 130
64 65
65 195
66 456
67 228
68 114
69 57
70 184

List of values

[1, 3, 8, 4, 2, 1, 8, 4, 2, 1, 12, 6, 3, 19, 52, 26, 13, 43, 104, 52, 26, 13, 48, 24, 12, 6, 3, 33, 94, 47, 124, 62, 31, 95, 224, 112, 56, 28, 14, 7, 54, 27, 96, 48, 24, 12, 6, 3, 54, 27, 104, 52, 26, 13, 80, 40, 20, 10, 5, 69, 198, 99, 260, 130, 65, 195, 456, 228, 114, 57, 184]

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