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.

A367304 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 regions in the resulting planar graph.

Table of values

n a(n)
3 1
4 4
5 1
6 27
7 8
8 1
9 130
10 88
11 16
12 1
13 385
14 444
15 246
16 30
17 1
18 1044
19 1544
20 1376
21 492
22 57
23 1
24 2005
25 3584
26 4621
27 2814
28 1079
29 88
30 1
31 4060
32 8356
33 11691
34 9042
35 6014
36 1800
37 163
38 1
39 6831
40 14996
41 25026
42 23604
43 20049
44 10016
45 3196
46 230
47 1
48 11272
49 26572
50 47386
51 50448
52 50597
53 34432
54 17632
55 4770
56 386
57 1

List of values

[1, 4, 1, 27, 8, 1, 130, 88, 16, 1, 385, 444, 246, 30, 1, 1044, 1544, 1376, 492, 57, 1, 2005, 3584, 4621, 2814, 1079, 88, 1, 4060, 8356, 11691, 9042, 6014, 1800, 163, 1, 6831, 14996, 25026, 23604, 20049, 10016, 3196, 230, 1, 11272, 26572, 47386, 50448, 50597, 34432, 17632, 4770, 386, 1]