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.

A322661 Number of graphs with loops spanning n labeled vertices.

Table of values

n a(n)
0 1
1 1
2 5
3 45
4 809
5 28217
6 1914733
7 254409765
8 66628946641
9 34575388318705
10 35680013894626133
11 73392583417010454429
12 301348381381966079690489
13 2471956814761996896091805993
14 40530184362443281653842556898237
15 1328619783326799871943604598592805525

List of values

[1, 1, 5, 45, 809, 28217, 1914733, 254409765, 66628946641, 34575388318705, 35680013894626133, 73392583417010454429, 301348381381966079690489, 2471956814761996896091805993, 40530184362443281653842556898237, 1328619783326799871943604598592805525]

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

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