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.

A280357 Primes formed from concatenating nextprime(n) and n.

Table of values

n a(n)
1 53
2 2927
3 3733
4 4139
5 5347
6 5351
7 5953
8 6761
9 6763
10 9791
11 113111
12 127123
13 131129
14 137131
15 149143
16 179173
17 191189
18 211199
19 223211
20 223217
21 223219
22 233231
23 239233
24 239237
25 263257
26 277273
27 281279
28 307301
29 331319
30 347341
31 359353
32 359357
33 419417
34 431423
35 431429
36 479473

List of values

[53, 2927, 3733, 4139, 5347, 5351, 5953, 6761, 6763, 9791, 113111, 127123, 131129, 137131, 149143, 179173, 191189, 211199, 223211, 223217, 223219, 233231, 239233, 239237, 263257, 277273, 281279, 307301, 331319, 347341, 359353, 359357, 419417, 431423, 431429, 479473]