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.

A327019 Number of non-isomorphic set-systems of weight n whose dual is a (strict) antichain.

Table of values

n a(n)
0 1
1 1
2 1
3 1
4 2
5 2
6 5
7 7
8 15
9 26
10 61

List of values

[1, 1, 1, 1, 2, 2, 5, 7, 15, 26, 61]