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.

A240099 Integers n such that 2n^k + 1, for k = 2..6, are prime.

Table of values

n a(n)
1 1
2 44250
3 1004004
4 3490575
5 3517335
6 5750115
7 10729026
8 19193559
9 20251770
10 25284039
11 25552194
12 30204801
13 33733206
14 39015405
15 47518809
16 52463445
17 58370025
18 69502971
19 72009429
20 77086380
21 78510156
22 83972646
23 85955475
24 89190969
25 90499584
26 92246199
27 95374005

List of values

[1, 44250, 1004004, 3490575, 3517335, 5750115, 10729026, 19193559, 20251770, 25284039, 25552194, 30204801, 33733206, 39015405, 47518809, 52463445, 58370025, 69502971, 72009429, 77086380, 78510156, 83972646, 85955475, 89190969, 90499584, 92246199, 95374005]