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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.

A386593 Number of sub-relation-algebras of Re(n), the collection of all binary relations over {1,2,...,n}.

Table of values

n	a(n)
1	1
2	2
3	6
4	30
5	124

List of values

[1, 2, 6, 30, 124]

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

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