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.

A249452 Numbers k such that A249441(k) = 3.

Table of values

n a(n)
1 15
2 31
3 47
4 63
5 95
6 127
7 191
8 255
9 383
10 511
11 767
12 1023
13 1535
14 2047
15 3071
16 4095
17 6143
18 8191
19 12287
20 16383
21 24575
22 32767
23 49151
24 65535
25 98303
26 131071
27 196607
28 262143
29 393215
30 524287
31 786431
32 1048575
33 1572863
34 2097151
35 3145727
36 4194303
37 6291455
38 8388607
39 12582911

List of values

[15, 31, 47, 63, 95, 127, 191, 255, 383, 511, 767, 1023, 1535, 2047, 3071, 4095, 6143, 8191, 12287, 16383, 24575, 32767, 49151, 65535, 98303, 131071, 196607, 262143, 393215, 524287, 786431, 1048575, 1572863, 2097151, 3145727, 4194303, 6291455, 8388607, 12582911]

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

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