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.

A103161 GCD of reverse(2^n) and reverse(2^(n+1)), where reverse(k) = A004086(k), the decimal representation of k read backwards.

Table of values

n a(n)
1 2
2 4
3 1
4 1
5 23
6 1
7 1
8 1
9 1
10 4201
11 2
12 2
13 1
14 1
15 1
16 1
17 1
18 1
19 1
20 1
21 2
22 2
23 1
24 1
25 1
26 7
27 1
28 1
29 1
30 1
31 4
32 2
33 1
34 1
35 1
36 1
37 1
38 1
39 1
40 1
41 2
42 2
43 19
44 1
45 1
46 1
47 1
48 1
49 1
50 1
51 2
52 1
53 1
54 1
55 1
56 1
57 1
58 1
59 1
60 1
61 4
62 1
63 1
64 1
65 1
66 1
67 1
68 1
69 1
70 1
71 34
72 1
73 1
74 1
75 7
76 1
77 1
78 1
79 1
80 1
81 2
82 1
83 1
84 1
85 1
86 1
87 1
88 1
89 1
90 1
91 2
92 1
93 1
94 1
95 1
96 1
97 1
98 1
99 1
100 1
101 1
102 1
103 1

List of values

[2, 4, 1, 1, 23, 1, 1, 1, 1, 4201, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 1, 1, 1, 7, 1, 1, 1, 1, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 19, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 34, 1, 1, 1, 7, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]