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.

A023301 Primes that remain prime through 3 iterations of function f(x) = 10x + 9.

Table of values

n a(n)
1 13
2 139
3 293
4 331
5 547
6 967
7 1049
8 1399
9 1567
10 1889
11 1997
12 2087
13 2137
14 2309
15 2423
16 2437
17 2753
18 2939
19 3719
20 3761
21 3919
22 4451
23 4517
24 4621
25 6089
26 7001
27 7741
28 8423
29 8849
30 9437
31 10487
32 11657
33 12007
34 12347
35 12823
36 13469
37 15289
38 15373
39 15661
40 17737
41 17989

List of values

[13, 139, 293, 331, 547, 967, 1049, 1399, 1567, 1889, 1997, 2087, 2137, 2309, 2423, 2437, 2753, 2939, 3719, 3761, 3919, 4451, 4517, 4621, 6089, 7001, 7741, 8423, 8849, 9437, 10487, 11657, 12007, 12347, 12823, 13469, 15289, 15373, 15661, 17737, 17989]