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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.

A249113 Take n and successively add 1, 2, ..., a(n) until reaching a prime for the third time.

Table of values

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

List of values

[4, 5, 16, 5, 11, 13, 8, 6, 19, 6, 12, 13, 7, 9, 28, 5, 11, 13, 12, 17, 19, 6, 11, 25, 8, 6, 28, 5, 20, 37, 7, 14, 19, 10, 11, 34, 8, 6, 40, 6, 20, 25, 8, 9, 31, 6, 11, 25, 19, 21, 19, 6, 12, 25, 16, 9, 28, 5, 20, 22, 7, 14, 40, 9, 11, 34, 19, 6, 52, 17, 12]

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