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.

A326970 Number of set-systems covering n vertices whose dual is a weak antichain.

Table of values

n a(n)
0 1
1 1
2 3
3 43
4 19251

List of values

[1, 1, 3, 43, 19251]