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.

A046904 Number of isomorphism classes of posets with n points with property that there is no nonsingelton proper subset T for which x not in T implies x or x>T or x incomparable with every element of T.

Table of values

n a(n)
0 1
1 1
2 0
3 0
4 1
5 4
6 28
7 234

List of values

[1, 1, 0, 0, 1, 4, 28, 234]