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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.

A180546 Primes that become a different prime under the mapping 4 <=> 5.

Table of values

n a(n)
1 43
2 53
3 241
4 251
5 349
6 359
7 409
8 421
9 457
10 463
11 487
12 499
13 509
14 521
15 547
16 563
17 587
18 599
19 643
20 653
21 1249
22 1259
23 1423
24 1453
25 1459
26 1471
27 1483
28 1523
29 1543
30 1549
31 1571
32 1583
33 2143
34 2153
35 2341
36 2347
37 2351
38 2357
39 2441
40 2447
41 2459
42 2549
43 2551
44 2557
45 2647
46 2657

List of values

[43, 53, 241, 251, 349, 359, 409, 421, 457, 463, 487, 499, 509, 521, 547, 563, 587, 599, 643, 653, 1249, 1259, 1423, 1453, 1459, 1471, 1483, 1523, 1543, 1549, 1571, 1583, 2143, 2153, 2341, 2347, 2351, 2357, 2441, 2447, 2459, 2549, 2551, 2557, 2647, 2657]

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

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