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.

A180641 Primes P such that P > (largest prime factor of (P-1)) * (largest prime factor of (P+1)).

Table of values

n a(n)
1 7
2 17
3 19
4 31
5 41
6 53
7 71
8 79
9 89
10 97
11 101
12 109
13 127
14 151
15 163
16 181
17 191
18 197
19 199
20 239
21 241
22 251
23 257
24 271
25 307
26 337
27 349
28 379
29 401
30 419
31 431
32 433
33 449
34 461
35 463
36 487
37 491
38 499
39 521
40 571
41 577
42 593
43 599
44 601
45 631
46 641
47 647
48 659
49 683
50 701
51 727
52 751
53 769
54 809

List of values

[7, 17, 19, 31, 41, 53, 71, 79, 89, 97, 101, 109, 127, 151, 163, 181, 191, 197, 199, 239, 241, 251, 257, 271, 307, 337, 349, 379, 401, 419, 431, 433, 449, 461, 463, 487, 491, 499, 521, 571, 577, 593, 599, 601, 631, 641, 647, 659, 683, 701, 727, 751, 769, 809]