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.

A206768 a(n) = smallest number k such that sigma(k-n) = sigma(k) - n, with k > n+1.

Table of values

n a(n)
1 3
2 5
3 5
4 7
5 7
6 11
7 81
8 11
9 11
10 13
11 13
12 17
13 4431
14 17
15 17
16 19
17 19
18 23
19 25
20 23
21 23
22 29

List of values

[3, 5, 5, 7, 7, 11, 81, 11, 11, 13, 13, 17, 4431, 17, 17, 19, 19, 23, 25, 23, 23, 29]