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.

A235619 Primes whose base-9 representation also is the base-4 representation of a prime.

Table of values

n a(n)
1 2
2 3
3 109
4 181
5 271
6 829
7 919
8 1549
9 1567
10 6661
11 6733
12 6823
13 8101
14 8191
15 8263
16 13933
17 14851
18 15319
19 22123
20 59149
21 59221
22 59239
23 59797
24 59887
25 61507
26 65629
27 65701
28 72253
29 72901
30 73819
31 118189
32 118927
33 119827
34 124669
35 125407
36 126127
37 126307
38 132679
39 132859

List of values

[2, 3, 109, 181, 271, 829, 919, 1549, 1567, 6661, 6733, 6823, 8101, 8191, 8263, 13933, 14851, 15319, 22123, 59149, 59221, 59239, 59797, 59887, 61507, 65629, 65701, 72253, 72901, 73819, 118189, 118927, 119827, 124669, 125407, 126127, 126307, 132679, 132859]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement.