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.

A217465 Composite integers k such that 2^k == 2 (mod k*(k+1)).

Table of values

n a(n)
1 561
2 1905
3 4033
4 4681
5 5461
6 6601
7 8481
8 11305
9 13741
10 13981
11 16705
12 23377
13 30121
14 31417
15 41041
16 49141
17 52633
18 57421
19 88357
20 88561
21 101101
22 107185
23 121465
24 130561
25 162193
26 196021
27 196093
28 204001
29 208465
30 219781
31 266305
32 276013
33 278545
34 282133
35 285541
36 314821
37 334153
38 341497
39 390937
40 399001

List of values

[561, 1905, 4033, 4681, 5461, 6601, 8481, 11305, 13741, 13981, 16705, 23377, 30121, 31417, 41041, 49141, 52633, 57421, 88357, 88561, 101101, 107185, 121465, 130561, 162193, 196021, 196093, 204001, 208465, 219781, 266305, 276013, 278545, 282133, 285541, 314821, 334153, 341497, 390937, 399001]