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.

A343095 Array read by antidiagonals: T(n,k) is the number of k-colorings of an n X n grid, up to rotational symmetry.

Table of values

n a(n)
0 1
1 1
2 0
3 1
4 1
5 0
6 1
7 2
8 1
9 0
10 1
11 3
12 6
13 1
14 0
15 1
16 4
17 24
18 140
19 1
20 0
21 1
22 5
23 70
24 4995
25 16456
26 1
27 0
28 1
29 6
30 165
31 65824
32 10763361
33 8390720
34 1
35 0
36 1
37 7
38 336
39 489125
40 1073758336
41 211822552035
42 17179934976
43 1
44 0
45 1
46 8
47 616
48 2521476
49 38147070625
50 281474993496064
51 37523658921114744
52 140737496748032
53 1
54 0

List of values

[1, 1, 0, 1, 1, 0, 1, 2, 1, 0, 1, 3, 6, 1, 0, 1, 4, 24, 140, 1, 0, 1, 5, 70, 4995, 16456, 1, 0, 1, 6, 165, 65824, 10763361, 8390720, 1, 0, 1, 7, 336, 489125, 1073758336, 211822552035, 17179934976, 1, 0, 1, 8, 616, 2521476, 38147070625, 281474993496064, 37523658921114744, 140737496748032, 1, 0]