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.

A168273 a(n) = 2*n + (-1)^n - 1.

Table of values

n a(n)
1 0
2 4
3 4
4 8
5 8
6 12
7 12
8 16
9 16
10 20
11 20
12 24
13 24
14 28
15 28
16 32
17 32
18 36
19 36
20 40
21 40
22 44
23 44
24 48
25 48
26 52
27 52
28 56
29 56
30 60
31 60
32 64
33 64
34 68
35 68
36 72
37 72
38 76
39 76
40 80
41 80
42 84
43 84
44 88
45 88
46 92
47 92
48 96
49 96
50 100
51 100
52 104
53 104
54 108
55 108
56 112
57 112
58 116
59 116
60 120
61 120
62 124
63 124
64 128
65 128
66 132

List of values

[0, 4, 4, 8, 8, 12, 12, 16, 16, 20, 20, 24, 24, 28, 28, 32, 32, 36, 36, 40, 40, 44, 44, 48, 48, 52, 52, 56, 56, 60, 60, 64, 64, 68, 68, 72, 72, 76, 76, 80, 80, 84, 84, 88, 88, 92, 92, 96, 96, 100, 100, 104, 104, 108, 108, 112, 112, 116, 116, 120, 120, 124, 124, 128, 128, 132]

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

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