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.

A147872 Number of consistent sets of 7 irreflexive binary order relationships over n objects.

Table of values

n a(n)
5 6540
6 496680
7 10931760
8 124318112
9 934536600
10 5284309680
11 24238001040
12 94622473440
13 324833152644
14 1003729086360
15 2840342968320
16 7458732665280
17 18365400613040
18 42754133712096
19 94739078371680
20 200943535287360
21 409861294271100
22 807103156903560
23 1539611666989968

List of values

[6540, 496680, 10931760, 124318112, 934536600, 5284309680, 24238001040, 94622473440, 324833152644, 1003729086360, 2840342968320, 7458732665280, 18365400613040, 42754133712096, 94739078371680, 200943535287360, 409861294271100, 807103156903560, 1539611666989968]

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

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