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.

A235467 Primes whose base-4 representation also is the base-3 representation of a prime.

Table of values

n a(n)
1 2
2 89
3 137
4 149
5 281
6 293
7 353
8 389
9 409
10 421
11 593
12 613
13 661
14 1097
15 1109
16 1289
17 1301
18 1321
19 1381
20 1409
21 1601
22 1609
23 1669
24 2069
25 2129
26 2309
27 2377
28 2389
29 2729
30 4133
31 4229
32 4373
33 4441
34 4513
35 4673
36 5153

List of values

[2, 89, 137, 149, 281, 293, 353, 389, 409, 421, 593, 613, 661, 1097, 1109, 1289, 1301, 1321, 1381, 1409, 1601, 1609, 1669, 2069, 2129, 2309, 2377, 2389, 2729, 4133, 4229, 4373, 4441, 4513, 4673, 5153]

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

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