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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.

A383168 Triangle T(n,k) read by rows: For closed chains of identical regular m-gons with connecting inner vertices lying n vertices apart, the n-th row lists the possible m in ascending order; n>=0, 1<=k<=d(8+4n).

Table of values

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

List of values

[5, 6, 8, 12, 7, 8, 9, 10, 12, 18, 9, 10, 12, 16, 24, 11, 12, 14, 15, 20, 30, 13, 14, 15, 16, 18, 20, 24, 36, 15, 16, 18, 21, 28, 42, 17, 18, 20, 24, 32, 48, 19, 20, 21, 22, 24, 27, 30, 36, 54, 21, 22, 24, 25, 28, 30, 40, 60, 23, 24, 26, 33, 44, 66]

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

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