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.

A270839 Integers k such that (A003266(k)/A000045(k-1)) is not divisible by k.

Table of values

n a(n)
1 2
2 3
3 4
4 7
5 9
6 11
7 19
8 23
9 31
10 43
11 59
12 67
13 71
14 79
15 83
16 103
17 127
18 131
19 163
20 167
21 179
22 191
23 223
24 227
25 239
26 251
27 271
28 283
29 311
30 359
31 367
32 379
33 383
34 419
35 431
36 439
37 443
38 463
39 467
40 479
41 487
42 491
43 499
44 503
45 523
46 547
47 571
48 587
49 599
50 607
51 631
52 643
53 647
54 659
55 683
56 719
57 727
58 739
59 751
60 787
61 823
62 827
63 839

List of values

[2, 3, 4, 7, 9, 11, 19, 23, 31, 43, 59, 67, 71, 79, 83, 103, 127, 131, 163, 167, 179, 191, 223, 227, 239, 251, 271, 283, 311, 359, 367, 379, 383, 419, 431, 439, 443, 463, 467, 479, 487, 491, 499, 503, 523, 547, 571, 587, 599, 607, 631, 643, 647, 659, 683, 719, 727, 739, 751, 787, 823, 827, 839]

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

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