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.

A103162 GCD of reverse(3^n) and reverse(3^(n+1)).

Table of values

n a(n)
1 3
2 9
3 18
4 18
5 9
6 9
7 36
8 9
9 27
10 27
11 9
12 9
13 9
14 9
15 9
16 27
17 9
18 63
19 9
20 9
21 9
22 9
23 27
24 18
25 36
26 9
27 9
28 18
29 18
30 18
31 9
32 9
33 9
34 9
35 4941
36 9
37 9
38 9
39 9
40 9
41 9
42 9
43 9
44 9
45 144
46 18
47 9
48 153
49 333
50 63
51 18
52 9
53 27
54 9
55 9
56 9
57 9
58 9
59 9
60 9
61 9
62 9
63 9
64 9
65 9
66 9
67 9
68 18
69 18
70 9
71 9
72 18
73 18
74 18
75 9
76 9
77 9
78 9
79 9
80 9
81 9
82 9
83 9
84 81
85 9
86 9
87 9
88 9
89 54

List of values

[3, 9, 18, 18, 9, 9, 36, 9, 27, 27, 9, 9, 9, 9, 9, 27, 9, 63, 9, 9, 9, 9, 27, 18, 36, 9, 9, 18, 18, 18, 9, 9, 9, 9, 4941, 9, 9, 9, 9, 9, 9, 9, 9, 9, 144, 18, 9, 153, 333, 63, 18, 9, 27, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 18, 18, 9, 9, 18, 18, 18, 9, 9, 9, 9, 9, 9, 9, 9, 9, 81, 9, 9, 9, 9, 54]