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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.

A237439 Triple Hex-primes: let f(n) = A102489(n); then sequence lists primes p such that f(p), f(f(p)) and f(f(f(p))) are also primes.

Table of values

n a(n)
1 2
2 3
3 5
4 7
5 59
6 61
7 97
8 101
9 151
10 257
11 599
12 647
13 829
14 1163
15 1499
16 1999
17 2351
18 2467
19 2531
20 2897
21 2903
22 3001
23 3373
24 4783
25 4813
26 5683
27 6317
28 6857
29 6997
30 7759
31 8563
32 8837
33 8963
34 9203
35 9463
36 9497
37 9521
38 10903
39 10957

List of values

[2, 3, 5, 7, 59, 61, 97, 101, 151, 257, 599, 647, 829, 1163, 1499, 1999, 2351, 2467, 2531, 2897, 2903, 3001, 3373, 4783, 4813, 5683, 6317, 6857, 6997, 7759, 8563, 8837, 8963, 9203, 9463, 9497, 9521, 10903, 10957]

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

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