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.

A333025 Irregular table read by rows: Take an isosceles triangle with its equal length sides divided into n equal parts with all diagonals drawn, as in A332953. Then T(n,k) = number of k-sided polygons in that figure for k>=3.

Table of values

n a(n)
1 1
2 5
3 14
4 3
5 1
6 29
7 19
8 4
9 50
10 66
11 9
12 81
13 164
14 12
15 134
16 313
17 37
18 2
19 219
20 546
21 60
22 7
23 359
24 853
25 112
26 9
27 556
28 1294
29 160
30 16
31 1
32 779
33 1940
34 283
35 43
36 3
37 1105
38 2780
39 360
40 53
41 6
42 1540
43 3750
44 670
45 91
46 5
47 1
48 2087
49 5064
50 873
51 132
52 11
53 2806
54 6625
55 1144
56 164
57 7
58 3

List of values

[1, 5, 14, 3, 1, 29, 19, 4, 50, 66, 9, 81, 164, 12, 134, 313, 37, 2, 219, 546, 60, 7, 359, 853, 112, 9, 556, 1294, 160, 16, 1, 779, 1940, 283, 43, 3, 1105, 2780, 360, 53, 6, 1540, 3750, 670, 91, 5, 1, 2087, 5064, 873, 132, 11, 2806, 6625, 1144, 164, 7, 3]