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.

A121386 Number of different two-colorings of {1,...,n} that minimize the number of monochromatic three-term arithmetic progressions that such a coloring can contain.

Table of values

n a(n)
1 2
2 4
3 6
4 10
5 14
6 20
7 16
8 6
9 36
10 8
11 44
12 10
13 8
14 30
15 16
16 8
17 12
18 2
19 12
20 28
21 64
22 110
23 96
24 134
25 56
26 44
27 16
28 2
29 16
30 74
31 116
32 188
33 200
34 180

List of values

[2, 4, 6, 10, 14, 20, 16, 6, 36, 8, 44, 10, 8, 30, 16, 8, 12, 2, 12, 28, 64, 110, 96, 134, 56, 44, 16, 2, 16, 74, 116, 188, 200, 180]

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

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