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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.

A235934 Primes p with f(p), f(f(p)) and f(f(f(p))) all prime, where f(n) = prime(n) - n + 1.

Table of values

n a(n)
1 2
2 3
3 23
4 311
5 1777
6 2341
7 2861
8 3329
9 3833
10 4051
11 8753
12 9007
13 11587
14 13093
15 13309
16 14551
17 16001
18 19687
19 23143
20 26993
21 37309
22 41981
23 44131
24 45491
25 54623
26 56431
27 56821
28 57991
29 60223
30 61643
31 66413
32 66883
33 67511
34 68767
35 69029
36 70003
37 75743
38 76261
39 76819
40 80021

List of values

[2, 3, 23, 311, 1777, 2341, 2861, 3329, 3833, 4051, 8753, 9007, 11587, 13093, 13309, 14551, 16001, 19687, 23143, 26993, 37309, 41981, 44131, 45491, 54623, 56431, 56821, 57991, 60223, 61643, 66413, 66883, 67511, 68767, 69029, 70003, 75743, 76261, 76819, 80021]

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

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