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.

A238365 Number of dots needed to express n as a Roman numeral in Braille.

Table of values

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

List of values

[2, 4, 6, 6, 4, 6, 8, 10, 6, 4, 6, 8, 10, 10, 8, 10, 12, 14, 10, 8, 10, 12, 14, 14, 12, 14, 16, 18, 14, 12, 14, 16, 18, 18, 16, 18, 20, 22, 18, 7, 9, 11, 13, 13, 11, 13, 15, 17, 13, 3, 5, 7, 9, 9, 7, 9, 11, 13, 9, 7, 9, 11, 13, 13, 11, 13, 15, 17, 13, 11, 13, 15]

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

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