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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.

A187014 Number of isomorphism classes of simply embedded (i.e., loop-free and without parallel edges bounding a disk) bipartite quadrangulations of RP^2 of minimum degree 3 with n nodes and n-1 faces.

Table of values

n a(n)
4 0
5 0
6 1
7 2
8 3
9 7
10 22
11 57
12 174
13 554
14 1848
15 6291
16 22052
17 78361
18 282420

List of values

[0, 0, 1, 2, 3, 7, 22, 57, 174, 554, 1848, 6291, 22052, 78361, 282420]

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

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