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.

A181741 Primes of the form 2^t-2^k-1, k>=1.

Table of values

n a(n)
1 3
2 5
3 7
4 11
5 13
6 23
7 29
8 31
9 47
10 59
11 61
12 127
13 191
14 223
15 239
16 251
17 383
18 479
19 503
20 509
21 991
22 1019
23 1021
24 2039
25 3583
26 3967
27 4079
28 4091
29 4093
30 6143
31 8191
32 15359
33 16127
34 16319
35 16381
36 63487
37 65407
38 65519
39 129023
40 131063
41 131071
42 245759
43 253951
44 261631
45 261887
46 262079
47 262111
48 262127
49 262139

List of values

[3, 5, 7, 11, 13, 23, 29, 31, 47, 59, 61, 127, 191, 223, 239, 251, 383, 479, 503, 509, 991, 1019, 1021, 2039, 3583, 3967, 4079, 4091, 4093, 6143, 8191, 15359, 16127, 16319, 16381, 63487, 65407, 65519, 129023, 131063, 131071, 245759, 253951, 261631, 261887, 262079, 262111, 262127, 262139]