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.

A227991 Highest power of 3 dividing prime(n)+1.

Table of values

n a(n)
1 3
2 1
3 3
4 1
5 3
6 1
7 9
8 1
9 3
10 3
11 1
12 1
13 3
14 1
15 3
16 27
17 3
18 1
19 1
20 9
21 1
22 1
23 3
24 9
25 1
26 3
27 1
28 27
29 1
30 3
31 1
32 3
33 3
34 1
35 3
36 1
37 1
38 1
39 3
40 3
41 9
42 1
43 3
44 1
45 9
46 1
47 1
48 1
49 3
50 1
51 9
52 3
53 1
54 9
55 3
56 3
57 27
58 1
59 1
60 3
61 1
62 3
63 1
64 3
65 1
66 3
67 1
68 1
69 3
70 1
71 3
72 9
73 1
74 1
75 1
76 3
77 3
78 1
79 3
80 1
81 3
82 1
83 27
84 1
85 1
86 3
87 9

List of values

[3, 1, 3, 1, 3, 1, 9, 1, 3, 3, 1, 1, 3, 1, 3, 27, 3, 1, 1, 9, 1, 1, 3, 9, 1, 3, 1, 27, 1, 3, 1, 3, 3, 1, 3, 1, 1, 1, 3, 3, 9, 1, 3, 1, 9, 1, 1, 1, 3, 1, 9, 3, 1, 9, 3, 3, 27, 1, 1, 3, 1, 3, 1, 3, 1, 3, 1, 1, 3, 1, 3, 9, 1, 1, 1, 3, 3, 1, 3, 1, 3, 1, 27, 1, 1, 3, 9]