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.

A219040 Numbers k such that 3^k + 20 is prime.

Table of values

n a(n)
1 1
2 2
3 3
4 4
5 5
6 7
7 8
8 10
9 11
10 14
11 44
12 55
13 68
14 71
15 80
16 123
17 158
18 213
19 220
20 272
21 668
22 725
23 885
24 1132
25 1677
26 2056
27 2618
28 3130
29 3986
30 6027
31 8660
32 11582
33 12278
34 14054
35 62956
36 103431
37 120434
38 123890
39 181407

List of values

[1, 2, 3, 4, 5, 7, 8, 10, 11, 14, 44, 55, 68, 71, 80, 123, 158, 213, 220, 272, 668, 725, 885, 1132, 1677, 2056, 2618, 3130, 3986, 6027, 8660, 11582, 12278, 14054, 62956, 103431, 120434, 123890, 181407]

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

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