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.

A191618 Least a such that (2^n+a)*2^n - 1 is prime.

Table of values

n a(n)
1 0
2 1
3 1
4 1
5 2
6 1
7 11
8 2
9 2
10 1
11 13
12 2
13 4
14 22
15 2
16 1
17 2
18 2
19 43
20 4
21 2
22 13
23 2
24 1
25 13
26 1
27 2
28 46
29 8
30 29
31 83
32 2
33 8
34 34
35 1
36 11
37 19
38 31
39 25
40 7
41 38
42 31
43 31
44 76
45 52
46 31
47 43
48 32
49 13
50 92
51 2
52 1
53 59
54 22
55 1
56 16
57 19
58 11
59 16
60 74
61 8
62 13
63 8
64 74
65 2
66 121
67 20
68 49
69 85
70 134
71 116
72 16

List of values

[0, 1, 1, 1, 2, 1, 11, 2, 2, 1, 13, 2, 4, 22, 2, 1, 2, 2, 43, 4, 2, 13, 2, 1, 13, 1, 2, 46, 8, 29, 83, 2, 8, 34, 1, 11, 19, 31, 25, 7, 38, 31, 31, 76, 52, 31, 43, 32, 13, 92, 2, 1, 59, 22, 1, 16, 19, 11, 16, 74, 8, 13, 8, 74, 2, 121, 20, 49, 85, 134, 116, 16]

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

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