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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.

A028836 Iterated sum of digits of n is a power of 2.

Table of values

n a(n)
1 1
2 2
3 4
4 8
5 10
6 11
7 13
8 17
9 19
10 20
11 22
12 26
13 28
14 29
15 31
16 35
17 37
18 38
19 40
20 44
21 46
22 47
23 49
24 53
25 55
26 56
27 58
28 62
29 64
30 65
31 67
32 71
33 73
34 74
35 76
36 80
37 82
38 83
39 85
40 89
41 91
42 92
43 94
44 98
45 100
46 101
47 103
48 107
49 109
50 110
51 112
52 116
53 118
54 119
55 121
56 125
57 127
58 128
59 130
60 134
61 136
62 137
63 139
64 143
65 145
66 146
67 148
68 152
69 154
70 155

List of values

[1, 2, 4, 8, 10, 11, 13, 17, 19, 20, 22, 26, 28, 29, 31, 35, 37, 38, 40, 44, 46, 47, 49, 53, 55, 56, 58, 62, 64, 65, 67, 71, 73, 74, 76, 80, 82, 83, 85, 89, 91, 92, 94, 98, 100, 101, 103, 107, 109, 110, 112, 116, 118, 119, 121, 125, 127, 128, 130, 134, 136, 137, 139, 143, 145, 146, 148, 152, 154, 155]

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

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