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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.

A168099 a(n) = number of natural numbers m such that n - 9 <= m <= n + 9.

Table of values

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

List of values

[9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19]

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

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