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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.

A191617 Least number a such that (2^n+a)*2^n + 1 is a prime number.

Table of values

n a(n)
1 0
2 0
3 1
4 0
5 4
6 3
7 12
8 0
9 1
10 3
11 6
12 6
13 16
14 9
15 4
16 5
17 3
18 20
19 6
20 5
21 4
22 5
23 21
24 9
25 16
26 35
27 6
28 6
29 18
30 8
31 28
32 6
33 46
34 11
35 39
36 6
37 3
38 20
39 22
40 47
41 93
42 90
43 13
44 51
45 27
46 98
47 34
48 6
49 12
50 14
51 21
52 21
53 49
54 143
55 18
56 5
57 58
58 30
59 37
60 30
61 6
62 56
63 16
64 150
65 72
66 59
67 12
68 5
69 34
70 3
71 28
72 45

List of values

[0, 0, 1, 0, 4, 3, 12, 0, 1, 3, 6, 6, 16, 9, 4, 5, 3, 20, 6, 5, 4, 5, 21, 9, 16, 35, 6, 6, 18, 8, 28, 6, 46, 11, 39, 6, 3, 20, 22, 47, 93, 90, 13, 51, 27, 98, 34, 6, 12, 14, 21, 21, 49, 143, 18, 5, 58, 30, 37, 30, 6, 56, 16, 150, 72, 59, 12, 5, 34, 3, 28, 45]

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

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