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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.

A066302 Reduced partially ordered sets (posets) with n labeled elements.

Table of values

n a(n)
0 1
1 1
2 1
3 7
4 75
5 1531
6 50673
7 2613703
8 202180723
9 22853355895
10 3701983130913
11 846741042881779
12 270316009546766571
13 119343586350194910211
14 72325998629777739416209
15 59798727157327673157936319

List of values

[1, 1, 1, 7, 75, 1531, 50673, 2613703, 202180723, 22853355895, 3701983130913, 846741042881779, 270316009546766571, 119343586350194910211, 72325998629777739416209, 59798727157327673157936319]

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

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