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.

A174272 Exactly one of 2^n-3 and 2^n+3 is prime.

Table of values

n a(n)
1 1
2 2
3 5
4 7
5 9
6 10
7 14
8 15
9 16
10 18
11 20
12 22
13 24
14 28
15 29
16 30
17 55
18 67
19 84
20 94
21 116
22 122
23 150
24 174
25 213
26 221
27 228
28 233
29 266
30 336
31 390
32 452
33 545
34 689
35 694
36 784
37 850
38 1110
39 1704
40 1736
41 2008
42 2139
43 2191
44 2321
45 2367
46 2370
47 3237
48 3954
49 4002
50 4060
51 4062
52 4552
53 5547
54 5630

List of values

[1, 2, 5, 7, 9, 10, 14, 15, 16, 18, 20, 22, 24, 28, 29, 30, 55, 67, 84, 94, 116, 122, 150, 174, 213, 221, 228, 233, 266, 336, 390, 452, 545, 689, 694, 784, 850, 1110, 1704, 1736, 2008, 2139, 2191, 2321, 2367, 2370, 3237, 3954, 4002, 4060, 4062, 4552, 5547, 5630]

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

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