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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.

A361584 Number of digraphs on n unlabeled nodes whose strongly connected components are directed cycles or single vertices.

Table of values

n a(n)
0 1
1 1
2 3
3 12
4 88
5 1239
6 36540
7 2226595
8 277421616
9 69974281748
10 35535207035048
11 36224521019293188
12 74004483908461354689
13 302712665772844097945072
14 2477999475270966827490305948
15 40583406022745170376459610683073
16 1329552679157905406495248763876363056

List of values

[1, 1, 3, 12, 88, 1239, 36540, 2226595, 277421616, 69974281748, 35535207035048, 36224521019293188, 74004483908461354689, 302712665772844097945072, 2477999475270966827490305948, 40583406022745170376459610683073, 1329552679157905406495248763876363056]

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

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