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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.

A335266 Numbers k such that b(n) = 2*b(n - 1) + k is prime, where b(0) = 1 and k is the smallest positive number.

Table of values

n a(n)
0 1
1 1
2 3
3 3
4 5
5 5
6 5
7 11
8 15
9 7
10 13
11 7
12 13
13 31
14 13
15 9
16 5
17 21
18 3
19 21
20 51
21 17
22 9
23 39
24 15
25 3
26 57
27 27
28 3
29 15
30 35
31 11
32 39
33 55
34 13
35 27
36 11
37 35
38 17
39 11
40 15
41 13
42 1
43 13
44 19
45 75
46 5
47 23
48 41
49 9
50 63
51 63
52 13
53 25
54 31
55 21
56 11
57 9
58 27
59 11
60 3
61 31
62 21
63 35
64 47
65 33

List of values

[1, 1, 3, 3, 5, 5, 5, 11, 15, 7, 13, 7, 13, 31, 13, 9, 5, 21, 3, 21, 51, 17, 9, 39, 15, 3, 57, 27, 3, 15, 35, 11, 39, 55, 13, 27, 11, 35, 17, 11, 15, 13, 1, 13, 19, 75, 5, 23, 41, 9, 63, 63, 13, 25, 31, 21, 11, 9, 27, 11, 3, 31, 21, 35, 47, 33]

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

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