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.

A061153 Numbers k such that k*2^m+1 are composites for all exponents m in the range 0<=m<=k.

Table of values

n a(n)
1 47
2 94
3 188
4 257
5 376
6 383
7 766
8 881
9 1532
10 2897
11 3061
12 3064
13 4847
14 5297
15 5359
16 5794
17 5897
18 6122
19 6128
20 7013
21 7651
22 8423
23 9694
24 10223
25 10594
26 10718
27 11794
28 12244
29 13787
30 14026
31 14027
32 15302
33 16817
34 16846
35 18107
36 19249
37 19388
38 20446
39 21181
40 21188

List of values

[47, 94, 188, 257, 376, 383, 766, 881, 1532, 2897, 3061, 3064, 4847, 5297, 5359, 5794, 5897, 6122, 6128, 7013, 7651, 8423, 9694, 10223, 10594, 10718, 11794, 12244, 13787, 14026, 14027, 15302, 16817, 16846, 18107, 19249, 19388, 20446, 21181, 21188]

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

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