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.

A239714 Primes of the form m = 4^i + 4^j - 1, where i > j >= 0.

Table of values

n a(n)
1 19
2 67
3 79
4 271
5 1039
6 1087
7 1279
8 4099
9 4111
10 4159
11 5119
12 16447
13 20479
14 65539
15 65551
16 65599
17 81919
18 262147
19 262399
20 263167
21 266239
22 1049599
23 1114111
24 1310719
25 4194319
26 4194559
27 4195327
28 16842751
29 17825791
30 67108879
31 268435459
32 268435711
33 272629759
34 1073741827
35 1073741839
36 1073758207

List of values

[19, 67, 79, 271, 1039, 1087, 1279, 4099, 4111, 4159, 5119, 16447, 20479, 65539, 65551, 65599, 81919, 262147, 262399, 263167, 266239, 1049599, 1114111, 1310719, 4194319, 4194559, 4195327, 16842751, 17825791, 67108879, 268435459, 268435711, 272629759, 1073741827, 1073741839, 1073758207]

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

Content is available under The OEIS End-User License Agreement.