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.

A235618 Primes whose base-8 representation also is the base-4 representation of a prime.

Table of values

n a(n)
1 2
2 3
3 11
4 19
5 67
6 89
7 137
8 211
9 523
10 593
11 641
12 659
13 1097
14 1163
15 1627
16 1667
17 1747
18 4177
19 4673
20 4691
21 5323
22 5657
23 5659
24 5779
25 5827
26 5849
27 8209
28 8387
29 8779
30 8849
31 9227
32 9241
33 9283
34 9433
35 9803
36 9817
37 9859
38 9883
39 9929
40 12289
41 12377
42 12433
43 12491
44 12953
45 13003
46 13331
47 13339
48 13441

List of values

[2, 3, 11, 19, 67, 89, 137, 211, 523, 593, 641, 659, 1097, 1163, 1627, 1667, 1747, 4177, 4673, 4691, 5323, 5657, 5659, 5779, 5827, 5849, 8209, 8387, 8779, 8849, 9227, 9241, 9283, 9433, 9803, 9817, 9859, 9883, 9929, 12289, 12377, 12433, 12491, 12953, 13003, 13331, 13339, 13441]

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

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