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.

A369227 Triangle read by rows: T(n,k) is the number of uniquely colorable simple graphs on n nodes with chromatic number k = 1..n.

Table of values

n a(n)
1 1
2 1
3 1
4 1
5 1
6 1
7 1
8 3
9 1
10 1
11 1
12 5
13 3
14 1
15 1
16 1
17 17
18 12
19 3
20 1
21 1
22 1
23 44
24 72
25 12
26 3
27 1
28 1
29 1
30 182
31 856
32 127
33 12
34 3
35 1
36 1
37 1
38 730
39 17018
40 3426
41 127
42 12
43 3
44 1
45 1
46 1
47 4032
48 531568
49 221188
50 4938
51 127
52 12
53 3
54 1
55 1
56 1
57 25598

List of values

[1, 1, 1, 1, 1, 1, 1, 3, 1, 1, 1, 5, 3, 1, 1, 1, 17, 12, 3, 1, 1, 1, 44, 72, 12, 3, 1, 1, 1, 182, 856, 127, 12, 3, 1, 1, 1, 730, 17018, 3426, 127, 12, 3, 1, 1, 1, 4032, 531568, 221188, 4938, 127, 12, 3, 1, 1, 1, 25598]