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.

A367303 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 internal vertices in the resulting planar graph.

Table of values

n a(n)
3 0
4 0
5 0
6 13
7 1
8 0
9 96
10 57
11 5
12 0
13 285
14 329
15 200
16 13
17 0
18 901
19 1317
20 1265
21 379
22 35
23 0
24 1605
25 2861
26 4410
27 2437
28 987
29 49
30 0
31 3534
32 7417
33 11280
34 7843
35 5789
36 1577
37 126
38 0
39 5797
40 12801
41 24455
42 21235
43 19642
44 9193
45 3042
46 161
47 0
48 9813
49 23329
50 46570
51 46141
52 49931
53 33161
54 17280
55 4371
56 330
57 0

List of values

[0, 0, 0, 13, 1, 0, 96, 57, 5, 0, 285, 329, 200, 13, 0, 901, 1317, 1265, 379, 35, 0, 1605, 2861, 4410, 2437, 987, 49, 0, 3534, 7417, 11280, 7843, 5789, 1577, 126, 0, 5797, 12801, 24455, 21235, 19642, 9193, 3042, 161, 0, 9813, 23329, 46570, 46141, 49931, 33161, 17280, 4371, 330, 0]