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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.

A326969 Number of sets of subsets of {1..n} whose dual is a weak antichain.

Table of values

n	a(n)
0	2
1	4
2	12
3	112
4	38892

List of values

[2, 4, 12, 112, 38892]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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