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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.

A181363 1 followed by the primes, interleaved recursively.

Table of values

n a(n)
1 1
2 1
3 2
4 1
5 3
6 2
7 5
8 1
9 7
10 3
11 11
12 2
13 13
14 5
15 17
16 1
17 19
18 7
19 23
20 3
21 29
22 11
23 31
24 2
25 37
26 13
27 41
28 5
29 43
30 17
31 47
32 1
33 53
34 19
35 59
36 7
37 61
38 23
39 67
40 3
41 71
42 29
43 73
44 11
45 79
46 31
47 83
48 2
49 89
50 37
51 97
52 13
53 101
54 41
55 103
56 5
57 107
58 43
59 109
60 17
61 113
62 47
63 127
64 1
65 131
66 53
67 137
68 19
69 139
70 59
71 149
72 7
73 151
74 61

List of values

[1, 1, 2, 1, 3, 2, 5, 1, 7, 3, 11, 2, 13, 5, 17, 1, 19, 7, 23, 3, 29, 11, 31, 2, 37, 13, 41, 5, 43, 17, 47, 1, 53, 19, 59, 7, 61, 23, 67, 3, 71, 29, 73, 11, 79, 31, 83, 2, 89, 37, 97, 13, 101, 41, 103, 5, 107, 43, 109, 17, 113, 47, 127, 1, 131, 53, 137, 19, 139, 59, 149, 7, 151, 61]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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