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.

A270834 Numbers n such that A256832(n)/A000129(n-1) is not divisible by n.

Table of values

n a(n)
1 3
2 7
3 9
4 11
5 19
6 23
7 31
8 43
9 47
10 67
11 71
12 83
13 107
14 127
15 131
16 139
17 151
18 163
19 167
20 191
21 211
22 263
23 271
24 283
25 307
26 311
27 331
28 347
29 359
30 367
31 383
32 431
33 439
34 463
35 467
36 479
37 491
38 499
39 503
40 523
41 547
42 563
43 571
44 587
45 619
46 631
47 647
48 659
49 691
50 719
51 727
52 739
53 743
54 787
55 811
56 823
57 839
58 859
59 863
60 883
61 887

List of values

[3, 7, 9, 11, 19, 23, 31, 43, 47, 67, 71, 83, 107, 127, 131, 139, 151, 163, 167, 191, 211, 263, 271, 283, 307, 311, 331, 347, 359, 367, 383, 431, 439, 463, 467, 479, 491, 499, 503, 523, 547, 563, 571, 587, 619, 631, 647, 659, 691, 719, 727, 739, 743, 787, 811, 823, 839, 859, 863, 883, 887]

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

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