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.

A378275 Numbers m which satisfy the equation: (m - floor((m - k)/k)) mod k = 1 (1 <= k <= m) only for k = 2 and m - 1.

Table of values

n a(n)
1 3
2 4
3 7
4 11
5 19
6 23
7 59
8 83
9 167
10 227
11 491
12 659
13 839
14 983
15 1019
16 1091
17 1319
18 1459
19 1523
20 1847
21 2179
22 2503
23 2963
24 3719
25 3767
26 4519
27 4871
28 4919
29 5059
30 6563
31 9239
32 9419
33 10883
34 12107
35 12539
36 14891
37 15383
38 20071
39 20747
40 23819
41 25219
42 26759
43 33851
44 35591
45 37379
46 45191

List of values

[3, 4, 7, 11, 19, 23, 59, 83, 167, 227, 491, 659, 839, 983, 1019, 1091, 1319, 1459, 1523, 1847, 2179, 2503, 2963, 3719, 3767, 4519, 4871, 4919, 5059, 6563, 9239, 9419, 10883, 12107, 12539, 14891, 15383, 20071, 20747, 23819, 25219, 26759, 33851, 35591, 37379, 45191]

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

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