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.

A219341 Least prime k such that k*2^n + 1 divides 2^k - 1, or 0 if no such prime exists.

Table of values

n a(n)
0 2
1 3
2 0
3 11
4 397
5 839
6 1459
7 2081
8 7297
9 53849
10 3499
11 70589
12 792277
13 20399
14 11173873
15 929057
16 232591
17 6782759
18 5834299
19 26812151
20 40269673
21 88529891
22 368454343
23 616767917
24 1167319801
25 709939943
26 38151887029
27 38617336361
28 23280518791
29 168046587719
30 882701485339

List of values

[2, 3, 0, 11, 397, 839, 1459, 2081, 7297, 53849, 3499, 70589, 792277, 20399, 11173873, 929057, 232591, 6782759, 5834299, 26812151, 40269673, 88529891, 368454343, 616767917, 1167319801, 709939943, 38151887029, 38617336361, 23280518791, 168046587719, 882701485339]