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.

A209630 Numbers in A206853 without proper divisors > 1 from the same sequence.

Table of values

n a(n)
1 1
2 2
3 7
4 11
5 13
6 31
7 47
8 59
9 61
10 127
11 191
12 223
13 239
14 251
15 895
16 991
17 1007
18 1019
19 1021
20 2047
21 3071
22 3583
23 3967
24 4031
25 4079
26 4091
27 4093
28 8191
29 15359
30 16127
31 16255
32 16319
33 16351
34 16375
35 16381
36 49151
37 63487
38 65279
39 65407
40 65519
41 65531
42 131071
43 196607
44 229375

List of values

[1, 2, 7, 11, 13, 31, 47, 59, 61, 127, 191, 223, 239, 251, 895, 991, 1007, 1019, 1021, 2047, 3071, 3583, 3967, 4031, 4079, 4091, 4093, 8191, 15359, 16127, 16255, 16319, 16351, 16375, 16381, 49151, 63487, 65279, 65407, 65519, 65531, 131071, 196607, 229375]

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

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