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.

A099553 Number of rooted 2-connected loopless 4-regular planar maps with n inner faces.

Table of values

n a(n)
3 1
4 2
5 10
6 42
7 209
8 1066
9 5726
10 31688
11 180234
12 1047356
13 6198500
14 37253790
15 226891665
16 1397880330
17 8699804598
18 54629525808
19 345778883678
20 2204263514460
21 14142192816908
22 91263177339092
23 592069697914170
24 3859674384409668
25 25272938482712044

List of values

[1, 2, 10, 42, 209, 1066, 5726, 31688, 180234, 1047356, 6198500, 37253790, 226891665, 1397880330, 8699804598, 54629525808, 345778883678, 2204263514460, 14142192816908, 91263177339092, 592069697914170, 3859674384409668, 25272938482712044]

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

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