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.

A130819 2*k appears 2*k-1 times.

Table of values

n a(n)
1 2
2 4
3 4
4 4
5 6
6 6
7 6
8 6
9 6
10 8
11 8
12 8
13 8
14 8
15 8
16 8
17 10
18 10
19 10
20 10
21 10
22 10
23 10
24 10
25 10
26 12
27 12
28 12
29 12
30 12
31 12
32 12
33 12
34 12
35 12
36 12
37 14
38 14
39 14
40 14
41 14
42 14
43 14
44 14
45 14
46 14
47 14
48 14
49 14
50 16
51 16
52 16
53 16
54 16
55 16
56 16
57 16
58 16
59 16
60 16
61 16
62 16
63 16
64 16
65 18
66 18
67 18
68 18
69 18
70 18
71 18
72 18
73 18
74 18
75 18

List of values

[2, 4, 4, 4, 6, 6, 6, 6, 6, 8, 8, 8, 8, 8, 8, 8, 10, 10, 10, 10, 10, 10, 10, 10, 10, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18]

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

Content is available under The OEIS End-User License Agreement.