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.

A309397 a(n) = gcd(n^2, A001008(n-1)) for n > 1.

Table of values

n a(n)
2 1
3 3
4 1
5 25
6 1
7 49
8 1
9 1
10 1
11 121
12 1
13 169
14 1
15 1
16 1
17 289
18 1
19 361
20 1
21 1
22 1
23 529
24 1
25 5
26 1
27 1
28 1
29 841
30 1
31 961
32 1
33 1
34 1
35 1
36 1
37 1369
38 1
39 1
40 1
41 1681
42 1
43 1849
44 1
45 1
46 1
47 2209
48 1
49 7
50 1
51 1
52 1
53 2809
54 1
55 1
56 1
57 1
58 1
59 3481
60 1
61 3721
62 1
63 1
64 1
65 1
66 1
67 4489
68 1
69 1
70 1
71 5041
72 1
73 5329

List of values

[1, 3, 1, 25, 1, 49, 1, 1, 1, 121, 1, 169, 1, 1, 1, 289, 1, 361, 1, 1, 1, 529, 1, 5, 1, 1, 1, 841, 1, 961, 1, 1, 1, 1, 1, 1369, 1, 1, 1, 1681, 1, 1849, 1, 1, 1, 2209, 1, 7, 1, 1, 1, 2809, 1, 1, 1, 1, 1, 3481, 1, 3721, 1, 1, 1, 1, 1, 4489, 1, 1, 1, 5041, 1, 5329]