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.

A374179 a(n) is the least prime p such that the binary expansions of p and of the next prime q > p differ at exactly n positions, and p and q have the same binary length.

Table of values

n a(n)
1 2
2 11
3 47
4 139
5 157
6 191
7 1151
8 1531
9 3067
10 7159
11 20479
12 36857
13 49139
14 98299
15 360439
16 917503
17 1310719
18 786431
19 6291449
20 5242877
21 20971507
22 58720253
23 83886053
24 201326557
25 335544301
26 402653171
27 3489660919
28 1879048183
29 5368709117
30 25769803751
31 21474836479
32 77309411323

List of values

[2, 11, 47, 139, 157, 191, 1151, 1531, 3067, 7159, 20479, 36857, 49139, 98299, 360439, 917503, 1310719, 786431, 6291449, 5242877, 20971507, 58720253, 83886053, 201326557, 335544301, 402653171, 3489660919, 1879048183, 5368709117, 25769803751, 21474836479, 77309411323]