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.

A263857 Triangle read by rows: T(n,k) (n>=0, k>=n+1) is the number of posets with n elements and k antichains.

Table of values

n a(n)
0 1
1 1
2 1
3 1
4 1
5 2
6 1
7 0
8 1
9 1
10 3
11 3
12 2
13 3
14 2
15 0
16 1
17 0
18 0
19 0
20 1
21 1
22 4
23 6
24 6
25 9
26 8
27 7
28 4
29 5
30 2
31 2
32 2
33 3
34 0
35 2
36 0
37 0
38 0
39 1
40 0
41 0
42 0
43 0
44 0
45 0
46 0
47 1

List of values

[1, 1, 1, 1, 1, 2, 1, 0, 1, 1, 3, 3, 2, 3, 2, 0, 1, 0, 0, 0, 1, 1, 4, 6, 6, 9, 8, 7, 4, 5, 2, 2, 2, 3, 0, 2, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 1]