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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.

A098166 a(n) is the prime index of the Lesser Fortunate number A055211(n), or 0 if A055211(n) is not a prime.

Table of values

n a(n)
2 2
3 4
4 5
5 6
6 7
7 10
8 9
9 14
10 13
11 21
12 17
13 15
14 24
15 19
16 21
17 28
18 24
19 26
20 31
21 25
22 23
23 24
24 25
25 54
26 32
27 30
28 36
29 56
30 54
31 48
32 41
33 77
34 60
35 36
36 45
37 40
38 52
39 51
40 43
41 48
42 48
43 62
44 108
45 62
46 88
47 49
48 64
49 74
50 55
51 63
52 65
53 111
54 69
55 66
56 63
57 123
58 91
59 66
60 83
61 92
62 97
63 110
64 67
65 75
66 99
67 87

List of values

[2, 4, 5, 6, 7, 10, 9, 14, 13, 21, 17, 15, 24, 19, 21, 28, 24, 26, 31, 25, 23, 24, 25, 54, 32, 30, 36, 56, 54, 48, 41, 77, 60, 36, 45, 40, 52, 51, 43, 48, 48, 62, 108, 62, 88, 49, 64, 74, 55, 63, 65, 111, 69, 66, 63, 123, 91, 66, 83, 92, 97, 110, 67, 75, 99, 87]

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

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