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.

A235480 Primes whose base-3 representation is also the base-9 representation of a prime.

Table of values

n a(n)
1 2
2 5
3 7
4 11
5 17
6 19
7 23
8 31
9 37
10 41
11 43
12 53
13 67
14 71
15 73
16 83
17 89
18 97
19 103
20 149
21 157
22 199
23 239
24 251
25 257
26 271
27 277
28 293
29 307
30 313
31 331
32 337
33 359
34 383
35 397
36 421
37 431
38 433
39 499
40 541
41 557
42 571
43 587
44 599
45 601
46 613
47 631
48 653
49 659
50 661
51 683
52 691
53 709
54 727
55 751
56 769
57 823
58 887
59 911
60 983
61 1009
62 1021
63 1031
64 1049
65 1051
66 1063
67 1129
68 1163
69 1217

List of values

[2, 5, 7, 11, 17, 19, 23, 31, 37, 41, 43, 53, 67, 71, 73, 83, 89, 97, 103, 149, 157, 199, 239, 251, 257, 271, 277, 293, 307, 313, 331, 337, 359, 383, 397, 421, 431, 433, 499, 541, 557, 571, 587, 599, 601, 613, 631, 653, 659, 661, 683, 691, 709, 727, 751, 769, 823, 887, 911, 983, 1009, 1021, 1031, 1049, 1051, 1063, 1129, 1163, 1217]