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.

A211823 Numbers k such that 9*k+1 are numbers with all divisors with additive digital root = 1.

Table of values

n a(n)
1 0
2 2
3 4
4 8
5 12
6 14
7 18
8 20
9 22
10 30
11 34
12 40
13 42
14 44
15 48
16 54
17 58
18 60
19 64
20 68
21 70
22 78
23 82
24 84
25 90
26 92
27 98
28 102
29 104
30 110
31 112
32 118
33 124
34 128
35 130
36 142
37 144
38 152
39 154
40 158
41 162
42 170
43 172
44 174
45 180
46 184
47 188
48 194
49 198
50 200
51 208
52 222
53 224
54 228
55 230
56 232
57 238
58 240
59 242

List of values

[0, 2, 4, 8, 12, 14, 18, 20, 22, 30, 34, 40, 42, 44, 48, 54, 58, 60, 64, 68, 70, 78, 82, 84, 90, 92, 98, 102, 104, 110, 112, 118, 124, 128, 130, 142, 144, 152, 154, 158, 162, 170, 172, 174, 180, 184, 188, 194, 198, 200, 208, 222, 224, 228, 230, 232, 238, 240, 242]

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

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