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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.

A239691 Base 5 sum of digits of prime(n).

Table of values

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

List of values

[2, 3, 1, 3, 3, 5, 5, 7, 7, 5, 3, 5, 5, 7, 7, 5, 7, 5, 7, 7, 9, 7, 7, 9, 9, 5, 7, 7, 9, 9, 3, 3, 5, 7, 9, 3, 5, 7, 7, 9, 7, 5, 7, 9, 9, 11, 7, 11, 7, 9, 9, 11, 9, 3, 5, 7, 9, 7, 5, 5, 7, 9, 7, 7, 9, 9, 7, 9, 11, 13, 9, 11, 11, 13, 7, 7, 9, 9, 5, 9, 11, 9, 7, 9]

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