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.

A239308 Size of smallest set S of integers such that {0,1,2,...,n} is a subset of S-S, where S-S={abs(i-j) | i,j in S}.

Table of values

n a(n)
0 1
1 2
2 3
3 3
4 4
5 4
6 4
7 5
8 5
9 5
10 6
11 6
12 6
13 6
14 7
15 7
16 7
17 7
18 7
19 8
20 8
21 8
22 8
23 8
24 8
25 9
26 9
27 9
28 9
29 9
30 10
31 10
32 10
33 10
34 10
35 10
36 10
37 10

List of values

[1, 2, 3, 3, 4, 4, 4, 5, 5, 5, 6, 6, 6, 6, 7, 7, 7, 7, 7, 8, 8, 8, 8, 8, 8, 9, 9, 9, 9, 9, 10, 10, 10, 10, 10, 10, 10, 10]