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.

A338488 Numbers n whose symmetric representation of sigma(n) has a maximum width of 2 that occurs exactly once (at the diagonal).

Table of values

n a(n)
1 6
2 15
3 28
4 91
5 153
6 190
7 325
8 496
9 703
10 861
11 946
12 1431
13 1891
14 2278
15 2701
16 3655
17 4753
18 5151
19 5356
20 5995
21 6441
22 7381
23 8128
24 8911
25 9453
26 10585
27 11476
28 12403
29 13366
30 15051
31 18721
32 21115
33 22366
34 23653

List of values

[6, 15, 28, 91, 153, 190, 325, 496, 703, 861, 946, 1431, 1891, 2278, 2701, 3655, 4753, 5151, 5356, 5995, 6441, 7381, 8128, 8911, 9453, 10585, 11476, 12403, 13366, 15051, 18721, 21115, 22366, 23653]

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

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