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.

A177719 Number of line segments connecting exactly 3 points in an n X n grid of points.

Table of values

n a(n)
1 0
2 0
3 8
4 24
5 60
6 112
7 212
8 344
9 548
10 800
11 1196
12 1672
13 2284
14 2992
15 3988
16 5128
17 6556
18 8160
19 10180
20 12424
21 15068
22 17968
23 21604
24 25576
25 30092
26 34976
27 40900
28 47288
29 54500
30 62224
31 70972
32 80296
33 90740
34 101824
35 114700
36 128344
37 143212
38 158896
39 176836

List of values

[0, 0, 8, 24, 60, 112, 212, 344, 548, 800, 1196, 1672, 2284, 2992, 3988, 5128, 6556, 8160, 10180, 12424, 15068, 17968, 21604, 25576, 30092, 34976, 40900, 47288, 54500, 62224, 70972, 80296, 90740, 101824, 114700, 128344, 143212, 158896, 176836]