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.

A217350 Numbers k such that 4^k + 9 is prime.

Table of values

n a(n)
1 1
2 3
3 5
4 9
5 15
6 33
7 41
8 335
9 443
10 671
11 1197
12 1355
13 2247
14 2639
15 117293
16 191099

List of values

[1, 3, 5, 9, 15, 33, 41, 335, 443, 671, 1197, 1355, 2247, 2639, 117293, 191099]