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.

A180540 Primes that become a different prime under the mapping 3 <=> 4.

Table of values

n a(n)
1 31
2 37
3 41
4 47
5 139
6 149
7 349
8 367
9 379
10 439
11 467
12 479
13 631
14 641
15 937
16 947
17 1039
18 1049
19 1327
20 1381
21 1399
22 1427
23 1481
24 1499
25 2131
26 2141
27 2311
28 2347
29 2377
30 2411
31 2437
32 2477
33 2539
34 2549
35 2731
36 2741
37 3001
38 3019
39 3079
40 3217
41 3229
42 3259
43 3271
44 3331
45 3449
46 3457

List of values

[31, 37, 41, 47, 139, 149, 349, 367, 379, 439, 467, 479, 631, 641, 937, 947, 1039, 1049, 1327, 1381, 1399, 1427, 1481, 1499, 2131, 2141, 2311, 2347, 2377, 2411, 2437, 2477, 2539, 2549, 2731, 2741, 3001, 3019, 3079, 3217, 3229, 3259, 3271, 3331, 3449, 3457]

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

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