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.

A331578 Number of labeled series-reduced rooted trees with n vertices and more than two branches of the root.

Table of values

n a(n)
1 0
2 0
3 0
4 4
5 5
6 186
7 847
8 17928
9 166833
10 3196630
11 45667391
12 925287276
13 17407857337
14 393376875906
15 8989368580935
16 229332484742416
17 6094576250570849
18 174924522900914094
19 5271210321949744111
20 168792243040279327860
21 5674164658298121248361
22 200870558472768096534490

List of values

[0, 0, 0, 4, 5, 186, 847, 17928, 166833, 3196630, 45667391, 925287276, 17407857337, 393376875906, 8989368580935, 229332484742416, 6094576250570849, 174924522900914094, 5271210321949744111, 168792243040279327860, 5674164658298121248361, 200870558472768096534490]

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

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