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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.

A230423 a(n) = smallest natural number x such that x=n+A034968(x), or zero if no such number exists.

Table of values

n a(n)
0 0
1 2
2 4
3 0
4 0
5 6
6 8
7 10
8 0
9 0
10 12
11 14
12 16
13 0
14 0
15 18
16 20
17 22
18 0
19 0
20 0
21 0
22 0
23 24
24 26
25 28
26 0
27 0
28 30
29 32
30 34
31 0
32 0
33 36
34 38
35 40
36 0
37 0
38 42
39 44
40 46
41 0
42 0
43 0
44 0
45 0
46 48
47 50
48 52
49 0
50 0
51 54
52 56
53 58
54 0
55 0
56 60
57 62
58 64
59 0
60 0
61 66
62 68
63 70
64 0
65 0
66 0
67 0
68 0
69 72
70 74
71 76
72 0
73 0
74 78

List of values

[0, 2, 4, 0, 0, 6, 8, 10, 0, 0, 12, 14, 16, 0, 0, 18, 20, 22, 0, 0, 0, 0, 0, 24, 26, 28, 0, 0, 30, 32, 34, 0, 0, 36, 38, 40, 0, 0, 42, 44, 46, 0, 0, 0, 0, 0, 48, 50, 52, 0, 0, 54, 56, 58, 0, 0, 60, 62, 64, 0, 0, 66, 68, 70, 0, 0, 0, 0, 0, 72, 74, 76, 0, 0, 78]

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

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