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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.

A168195 a(n) = 2*n - a(n-1) + 1 with n>1, a(1)=5.

Table of values

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

List of values

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

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

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