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.

A370425 Integers of the form (2^x + 1) / (2^y + 1).

Table of values

n a(n)
1 1
2 3
3 11
4 13
5 43
6 57
7 171
8 205
9 241
10 683
11 993
12 2731
13 3277
14 3641
15 4033
16 10923
17 16257
18 43691
19 52429
20 61681
21 65281
22 174763
23 233017
24 261633
25 699051
26 838861
27 1016801
28 1047553
29 2796203
30 4192257
31 11184811
32 13421773
33 14913081
34 15790321
35 16519105
36 16773121
37 44739243
38 67100673
39 178956971

List of values

[1, 3, 11, 13, 43, 57, 171, 205, 241, 683, 993, 2731, 3277, 3641, 4033, 10923, 16257, 43691, 52429, 61681, 65281, 174763, 233017, 261633, 699051, 838861, 1016801, 1047553, 2796203, 4192257, 11184811, 13421773, 14913081, 15790321, 16519105, 16773121, 44739243, 67100673, 178956971]