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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.

A235394 Primes whose decimal representation is a valid number in base 8 and interpreted as such is again a prime.

Table of values

n a(n)
1 2
2 3
3 5
4 7
5 13
6 23
7 37
8 53
9 73
10 103
11 107
12 131
13 211
14 227
15 263
16 277
17 307
18 337
19 373
20 401
21 431
22 433
23 463
24 467
25 521
26 541
27 547
28 557
29 577
30 631
31 643
32 661
33 673
34 701
35 1013
36 1063
37 1151
38 1153
39 1201
40 1223
41 1327
42 1423
43 1451
44 1453
45 1531
46 1567
47 1613
48 1627
49 1663
50 1721
51 2011
52 2017

List of values

[2, 3, 5, 7, 13, 23, 37, 53, 73, 103, 107, 131, 211, 227, 263, 277, 307, 337, 373, 401, 431, 433, 463, 467, 521, 541, 547, 557, 577, 631, 643, 661, 673, 701, 1013, 1063, 1151, 1153, 1201, 1223, 1327, 1423, 1451, 1453, 1531, 1567, 1613, 1627, 1663, 1721, 2011, 2017]

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

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