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.

A361586 Number of digraphs on n unlabeled nodes in which every node belongs to a directed cycle.

Table of values

n a(n)
0 1
1 0
2 1
3 5
4 90
5 5289
6 1071691
7 712342075
8 1585944117738
9 12152982231404393
10 328276896613548366675
11 31834464336872565979301363
12 11234630426387288679040317490771
13 14576388456695908232721134339830232699
14 70075904005979773819582865772534172929477101

List of values

[1, 0, 1, 5, 90, 5289, 1071691, 712342075, 1585944117738, 12152982231404393, 328276896613548366675, 31834464336872565979301363, 11234630426387288679040317490771, 14576388456695908232721134339830232699, 70075904005979773819582865772534172929477101]

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

Content is available under The OEIS End-User License Agreement.