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.

A359977 Irregular table read by rows: T(n,k) is the number of k-gons, k>=3, formed inside a right triangle by the straight line segments mutually connecting all vertices and points on the two shorter edges whose positions on one edge equal the Farey series of order n while on the other they divide its length into n equal segments.

Table of values

n a(n)
1 1
2 5
3 20
4 8
5 2
6 50
7 57
8 3
9 169
10 274
11 31
12 5
13 303
14 646
15 41
16 2
17 1
18 889
19 2011
20 179
21 21
22 2
23 1685
24 4025
25 388
26 33
27 4
28 3466
29 8283
30 925
31 67
32 7
33 5624
34 13442
35 1498
36 106
37 9
38 1
39 11896
40 27907
41 3718
42 354
43 30
44 2
45 16976
46 40100
47 5182
48 461
49 33
50 1
51 32506
52 73806
53 11249
54 1118
55 61
56 6
57 46187
58 104453
59 16380
60 1747
61 123
62 1
63 1

List of values

[1, 5, 20, 8, 2, 50, 57, 3, 169, 274, 31, 5, 303, 646, 41, 2, 1, 889, 2011, 179, 21, 2, 1685, 4025, 388, 33, 4, 3466, 8283, 925, 67, 7, 5624, 13442, 1498, 106, 9, 1, 11896, 27907, 3718, 354, 30, 2, 16976, 40100, 5182, 461, 33, 1, 32506, 73806, 11249, 1118, 61, 6, 46187, 104453, 16380, 1747, 123, 1, 1]