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.

A231474 Primes whose base-3 representation is also the base-5 representation of a prime.

Table of values

n a(n)
1 2
2 3
3 5
4 7
5 13
6 17
7 29
8 31
9 37
10 41
11 59
12 67
13 79
14 97
15 101
16 109
17 113
18 137
19 139
20 149
21 151
22 173
23 181
24 193
25 223
26 229
27 251
28 269
29 271
30 293
31 311
32 331
33 353
34 367
35 373
36 379
37 383
38 389
39 397
40 401
41 457
42 467
43 491
44 503
45 617
46 631
47 641
48 647
49 653
50 673
51 701
52 773
53 787
54 797
55 809
56 829
57 853
58 857
59 911
60 929
61 953
62 977

List of values

[2, 3, 5, 7, 13, 17, 29, 31, 37, 41, 59, 67, 79, 97, 101, 109, 113, 137, 139, 149, 151, 173, 181, 193, 223, 229, 251, 269, 271, 293, 311, 331, 353, 367, 373, 379, 383, 389, 397, 401, 457, 467, 491, 503, 617, 631, 641, 647, 653, 673, 701, 773, 787, 797, 809, 829, 853, 857, 911, 929, 953, 977]

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

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