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.

A118447 Number of rooted n-edge one-vertex maps on the Klein bottle (dually: one-face maps).

Table of values

n a(n)
2 4
3 42
4 304
5 1870
6 10488
7 55412
8 280768
9 1379286
10 6616360
11 31144300
12 144367584
13 660746892
14 2991902704
15 13424189160
16 59758420736
17 264191654758
18 1160934273288
19 5074150057916
20 22071747625120
21 95596117130724

List of values

[4, 42, 304, 1870, 10488, 55412, 280768, 1379286, 6616360, 31144300, 144367584, 660746892, 2991902704, 13424189160, 59758420736, 264191654758, 1160934273288, 5074150057916, 22071747625120, 95596117130724]

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

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