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.

A166251 Isolated primes: Primes p such that there is no other prime in the interval [2*prevprime(p/2), 2*nextprime(p/2)].

Table of values

n a(n)
1 5
2 7
3 23
4 37
5 79
6 83
7 89
8 163
9 211
10 223
11 257
12 277
13 317
14 331
15 337
16 359
17 383
18 389
19 397
20 449
21 457
22 467
23 479
24 541
25 547
26 557
27 563
28 631
29 673
30 701
31 709
32 761
33 787
34 797
35 839
36 863
37 877
38 887
39 919
40 929
41 977
42 1129
43 1181
44 1201
45 1213
46 1237
47 1283
48 1307
49 1327
50 1361
51 1399
52 1409

List of values

[5, 7, 23, 37, 79, 83, 89, 163, 211, 223, 257, 277, 317, 331, 337, 359, 383, 389, 397, 449, 457, 467, 479, 541, 547, 557, 563, 631, 673, 701, 709, 761, 787, 797, 839, 863, 877, 887, 919, 929, 977, 1129, 1181, 1201, 1213, 1237, 1283, 1307, 1327, 1361, 1399, 1409]

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

Content is available under The OEIS End-User License Agreement.