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.

A367302 Table read by antidiagonals: Place k equally spaced points on each side of a regular n-gon and join every pair of these n*k points by a chord; T(n,k) (n >= 3, k >= 0) gives the number of vertices in the resulting planar graph.

Table of values

n a(n)
3 3
4 6
5 4
6 22
7 9
8 5
9 108
10 69
11 15
12 6
13 300
14 345
15 215
16 25
17 7
18 919
19 1337
20 1285
21 397
22 49
23 8
24 1626
25 2885
26 4435
27 2461
28 1008
29 65
30 9
31 3558
32 7445
33 11310
34 7873
35 5817
36 1601
37 144
38 10
39 5824
40 12833
41 24490
42 21271
43 19677
44 9225
45 3069
46 181
47 11
48 9843
49 23365
50 46610
51 46183
52 49973
53 33201
54 17316
55 4401
56 352
57 12

List of values

[3, 6, 4, 22, 9, 5, 108, 69, 15, 6, 300, 345, 215, 25, 7, 919, 1337, 1285, 397, 49, 8, 1626, 2885, 4435, 2461, 1008, 65, 9, 3558, 7445, 11310, 7873, 5817, 1601, 144, 10, 5824, 12833, 24490, 21271, 19677, 9225, 3069, 181, 11, 9843, 23365, 46610, 46183, 49973, 33201, 17316, 4401, 352, 12]