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.

A109254 New factors appearing in the factorization of 7^k - 2^k as k increases.

Table of values

n a(n)
1 5
2 3
3 67
4 53
5 11
6 61
7 13
8 164683
9 2417
10 163
11 739
12 1871
13 199
14 1987261
15 2221
16 1301
17 14894543
18 71
19 1289
20 31
21 136261
22 17
23 339121
24 137
25 443
26 766606297
27 19
28 2017
29 2279779036969771
30 5329741
31 43
32 235448977
33 23
34 9552313
35 47
36 116462754638606501
37 337
38 16993
39 101
40 158305897173001

List of values

[5, 3, 67, 53, 11, 61, 13, 164683, 2417, 163, 739, 1871, 199, 1987261, 2221, 1301, 14894543, 71, 1289, 31, 136261, 17, 339121, 137, 443, 766606297, 19, 2017, 2279779036969771, 5329741, 43, 235448977, 23, 9552313, 47, 116462754638606501, 337, 16993, 101, 158305897173001]