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.

A369828 Number of simple graphs on 2n labeled nodes with n edges where each maximally connected subgraph has at most one cycle.

Table of values

n a(n)
0 1
1 1
2 15
3 455
4 20475
5 1220499
6 90612753
7 8055867105
8 834505143615
9 98716154311775
10 13130233759131489
11 1939826433518297961
12 315169336802124178465
13 55852728904993187133225
14 10721612205253023622081875
15 2216303140328629150998750435
16 490841301461498403844464646155

List of values

[1, 1, 15, 455, 20475, 1220499, 90612753, 8055867105, 834505143615, 98716154311775, 13130233759131489, 1939826433518297961, 315169336802124178465, 55852728904993187133225, 10721612205253023622081875, 2216303140328629150998750435, 490841301461498403844464646155]

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

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