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.

A006968 Number of letters in Roman numeral representation of n.

Table of values

n a(n)
1 1
2 2
3 3
4 2
5 1
6 2
7 3
8 4
9 2
10 1
11 2
12 3
13 4
14 3
15 2
16 3
17 4
18 5
19 3
20 2
21 3
22 4
23 5
24 4
25 3
26 4
27 5
28 6
29 4
30 3
31 4
32 5
33 6
34 5
35 4
36 5
37 6
38 7
39 5
40 2
41 3
42 4
43 5
44 4
45 3
46 4
47 5
48 6
49 4
50 1
51 2
52 3
53 4
54 3
55 2
56 3
57 4
58 5
59 3
60 2
61 3
62 4
63 5
64 4
65 3
66 4
67 5
68 6
69 4
70 3
71 4
72 5
73 6
74 5
75 4
76 5
77 6
78 7
79 5
80 4
81 5
82 6
83 7
84 6
85 5
86 6
87 7
88 8
89 6
90 2
91 3
92 4
93 5
94 4
95 3
96 4
97 5
98 6
99 4
100 1
101 2
102 3
103 4
104 3
105 2

List of values

[1, 2, 3, 2, 1, 2, 3, 4, 2, 1, 2, 3, 4, 3, 2, 3, 4, 5, 3, 2, 3, 4, 5, 4, 3, 4, 5, 6, 4, 3, 4, 5, 6, 5, 4, 5, 6, 7, 5, 2, 3, 4, 5, 4, 3, 4, 5, 6, 4, 1, 2, 3, 4, 3, 2, 3, 4, 5, 3, 2, 3, 4, 5, 4, 3, 4, 5, 6, 4, 3, 4, 5, 6, 5, 4, 5, 6, 7, 5, 4, 5, 6, 7, 6, 5, 6, 7, 8, 6, 2, 3, 4, 5, 4, 3, 4, 5, 6, 4, 1, 2, 3, 4, 3, 2]