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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.

A093796 Sequence of digit-values after concatenating the natural numbers < 4000 in Roman numeral representation.

Table of values

n a(n)
1 1
2 1
3 1
4 1
5 1
6 1
7 1
8 5
9 5
10 5
11 1
12 5
13 1
14 1
15 5
16 1
17 1
18 1
19 1
20 10
21 10
22 10
23 1
24 10
25 1
26 1
27 10
28 1
29 1
30 1
31 10
32 1
33 5
34 10
35 5
36 10
37 5
38 1
39 10
40 5
41 1
42 1
43 10
44 5
45 1
46 1
47 1
48 10
49 1
50 10
51 10
52 10
53 10
54 10
55 1
56 10
57 10
58 1
59 1
60 10
61 10
62 1
63 1
64 1
65 10
66 10
67 1
68 5
69 10
70 10
71 5
72 10
73 10
74 5
75 1
76 10
77 10
78 5
79 1

List of values

[1, 1, 1, 1, 1, 1, 1, 5, 5, 5, 1, 5, 1, 1, 5, 1, 1, 1, 1, 10, 10, 10, 1, 10, 1, 1, 10, 1, 1, 1, 10, 1, 5, 10, 5, 10, 5, 1, 10, 5, 1, 1, 10, 5, 1, 1, 1, 10, 1, 10, 10, 10, 10, 10, 1, 10, 10, 1, 1, 10, 10, 1, 1, 1, 10, 10, 1, 5, 10, 10, 5, 10, 10, 5, 1, 10, 10, 5, 1]

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