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.

A234310 Primes of the form 4^k + 4^m - 1, where k and m are positive integers.

Table of values

n a(n)
1 7
2 19
3 31
4 67
5 79
6 127
7 271
8 1039
9 1087
10 1279
11 4099
12 4111
13 4159
14 5119
15 8191
16 16447
17 20479
18 65539
19 65551
20 65599
21 81919
22 131071
23 262147
24 262399
25 263167
26 266239
27 524287
28 1049599
29 1114111
30 1310719
31 4194319
32 4194559
33 4195327
34 16842751
35 17825791
36 67108879

List of values

[7, 19, 31, 67, 79, 127, 271, 1039, 1087, 1279, 4099, 4111, 4159, 5119, 8191, 16447, 20479, 65539, 65551, 65599, 81919, 131071, 262147, 262399, 263167, 266239, 524287, 1049599, 1114111, 1310719, 4194319, 4194559, 4195327, 16842751, 17825791, 67108879]