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.

A036788 Length of Roman notation for n <= length of decimal representation.

Table of values

n a(n)
1 1
2 5
3 10
4 11
5 15
6 20
7 40
8 50
9 51
10 55
11 60
12 90
13 100
14 101
15 102
16 104
17 105
18 106
19 109
20 110
21 111
22 115
23 120
24 140
25 150
26 151
27 155
28 160
29 190
30 200
31 201
32 205
33 210
34 250
35 300
36 400
37 401
38 405
39 410
40 450
41 500
42 501
43 502
44 504
45 505
46 506
47 509
48 510
49 511
50 515
51 520
52 540
53 550
54 551
55 555

List of values

[1, 5, 10, 11, 15, 20, 40, 50, 51, 55, 60, 90, 100, 101, 102, 104, 105, 106, 109, 110, 111, 115, 120, 140, 150, 151, 155, 160, 190, 200, 201, 205, 210, 250, 300, 400, 401, 405, 410, 450, 500, 501, 502, 504, 505, 506, 509, 510, 511, 515, 520, 540, 550, 551, 555]