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.

A069090 Primes none of whose proper initial segments are primes.

Table of values

n a(n)
1 2
2 3
3 5
4 7
5 11
6 13
7 17
8 19
9 41
10 43
11 47
12 61
13 67
14 83
15 89
16 97
17 101
18 103
19 107
20 109
21 127
22 149
23 151
24 157
25 163
26 167
27 181
28 401
29 409
30 421
31 443
32 449
33 457
34 461
35 463
36 467
37 487
38 491
39 499
40 601
41 607
42 631
43 641
44 643
45 647
46 653
47 659
48 661
49 683
50 691
51 809
52 811
53 821
54 823
55 827
56 829

List of values

[2, 3, 5, 7, 11, 13, 17, 19, 41, 43, 47, 61, 67, 83, 89, 97, 101, 103, 107, 109, 127, 149, 151, 157, 163, 167, 181, 401, 409, 421, 443, 449, 457, 461, 463, 467, 487, 491, 499, 601, 607, 631, 641, 643, 647, 653, 659, 661, 683, 691, 809, 811, 821, 823, 827, 829]