cp's OEIS Frontend

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.

A232565 a(n) is the smallest k such that 2^(2^n) - 2^k - 1 is prime, or -1 if no such k exists.

Table of values

n a(n)
1 0
2 1
3 2
4 4
5 2
6 8
7 18
8 76
9 32
10 151
11 692
12 592
13 154
14 580
15 27365
16 11267

List of values

[0, 1, 2, 4, 2, 8, 18, 76, 32, 151, 692, 592, 154, 580, 27365, 11267]