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.

A079153 Primes p such that both p-1 and p+1 have at most 3 prime factors, counted with multiplicity; i.e., primes p such that bigomega(p-1) <= 3 and bigomega(p+1) <= 3, where bigomega(n) = A001222(n).

Table of values

n a(n)
1 2
2 3
3 5
4 7
5 11
6 13
7 19
8 29
9 43
10 67
11 173
12 283
13 317
14 653
15 787
16 907
17 1867
18 2083
19 2693
20 2803
21 3413
22 3643
23 3677
24 4253
25 4363
26 4723
27 5443
28 5717
29 6197
30 6547
31 6653
32 8563
33 8573
34 9067
35 9187
36 9403
37 9643
38 10733
39 11443
40 11587
41 12163
42 12917
43 13997
44 14107
45 14683
46 15187

List of values

[2, 3, 5, 7, 11, 13, 19, 29, 43, 67, 173, 283, 317, 653, 787, 907, 1867, 2083, 2693, 2803, 3413, 3643, 3677, 4253, 4363, 4723, 5443, 5717, 6197, 6547, 6653, 8563, 8573, 9067, 9187, 9403, 9643, 10733, 11443, 11587, 12163, 12917, 13997, 14107, 14683, 15187]