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.

A128033 Least number k>0 such that ((n+3)^k - 3^k)/n is prime, or 0 if no such prime exists.

Table of values

n a(n)
0 0
1 2
2 13
3 0
4 3
5 2
6 0
7 2
8 3
9 0
10 7
11 2
12 0
13 2
14 3
15 0
16 73
17 2
18 0
19 5
20 3
21 0
22 3
23 2
24 0
25 2
26 3
27 0
28 3
29 3
30 0
31 2
32 5
33 0
34 3
35 2
36 0
37 2
38 401
39 0
40 3
41 2
42 0
43 5
44 5
45 0
46 3
47 2
48 0

List of values

[0, 2, 13, 0, 3, 2, 0, 2, 3, 0, 7, 2, 0, 2, 3, 0, 73, 2, 0, 5, 3, 0, 3, 2, 0, 2, 3, 0, 3, 3, 0, 2, 5, 0, 3, 2, 0, 2, 401, 0, 3, 2, 0, 5, 5, 0, 3, 2, 0]