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.

A103943 Number of unrooted two-vertex n-edge maps in the plane (planar with a distinguished outside face).

Table of values

n a(n)
1 1
2 3
3 12
4 48
5 196
6 798
7 3248
8 13184
9 53416
10 216018
11 872344
12 3518496
13 14177528
14 57080572
15 229657792
16 923474944
17 3711572176
18 14911097514
19 59883185096
20 240416320928
21 964947251544
22 3872021946532
23 15533828715232
24 62306843932928

List of values

[1, 3, 12, 48, 196, 798, 3248, 13184, 53416, 216018, 872344, 3518496, 14177528, 57080572, 229657792, 923474944, 3711572176, 14911097514, 59883185096, 240416320928, 964947251544, 3872021946532, 15533828715232, 62306843932928]

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

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