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.

A055351 Number of labeled mobiles (circular rooted trees) with n nodes and 4 leaves.

Table of values

n a(n)
5 30
6 1500
7 47250
8 1234800
9 29635200
10 685843200
11 15717240000
12 362244960000
13 8476532064000
14 202580554176000
15 4963223577312000
16 124948285862400000
17 3236755595673600000
18 86346680044584960000
19 2372991796225290240000

List of values

[30, 1500, 47250, 1234800, 29635200, 685843200, 15717240000, 362244960000, 8476532064000, 202580554176000, 4963223577312000, 124948285862400000, 3236755595673600000, 86346680044584960000, 2372991796225290240000]

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

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