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.

A067155 Number of octagonal regions in regular n-gon with all diagonals drawn.

Table of values

n a(n)
8 0
9 0
10 0
11 0
12 0
13 13
14 0
15 0
16 0
17 34
18 0
19 38
20 20
21 0
22 44
23 23
24 0
25 50
26 26
27 108
28 28
29 145
30 0
31 217
32 0
33 264
34 102
35 315
36 72
37 407
38 190
39 546
40 200
41 656
42 42
43 903
44 528
45 810
46 598
47 1175
48 288
49 1078
50 550
51 1479
52 780
53 1166
54 486
55 1705
56 784
57 2451
58 1276
59 3068
60 960
61 3172
62 1860
63 4347
64 2432
65 4225
66 2376
67 4958
68 2992
69 3519
70 2380

List of values

[0, 0, 0, 0, 0, 13, 0, 0, 0, 34, 0, 38, 20, 0, 44, 23, 0, 50, 26, 108, 28, 145, 0, 217, 0, 264, 102, 315, 72, 407, 190, 546, 200, 656, 42, 903, 528, 810, 598, 1175, 288, 1078, 550, 1479, 780, 1166, 486, 1705, 784, 2451, 1276, 3068, 960, 3172, 1860, 4347, 2432, 4225, 2376, 4958, 2992, 3519, 2380]