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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.

A018813 Number of lines through exactly 6 points of an n X n grid of points.

Table of values

n a(n)
0 0
1 0
2 0
3 0
4 0
5 0
6 14
7 4
8 4
9 4
10 4
11 28
12 60
13 44
14 20
15 20
16 88
17 172
18 272
19 228
20 168
21 180
22 284
23 404
24 540
25 484
26 628
27 788
28 964
29 1276
30 1620
31 1612
32 1588
33 1548
34 1492
35 1420
36 2072
37 2484
38 2928
39 3404
40 3912
41 4788
42 5728
43 5852
44 5960
45 6052
46 6692
47 7364
48 8068
49 8004
50 8520
51 9468
52 10464

List of values

[0, 0, 0, 0, 0, 0, 14, 4, 4, 4, 4, 28, 60, 44, 20, 20, 88, 172, 272, 228, 168, 180, 284, 404, 540, 484, 628, 788, 964, 1276, 1620, 1612, 1588, 1548, 1492, 1420, 2072, 2484, 2928, 3404, 3912, 4788, 5728, 5852, 5960, 6052, 6692, 7364, 8068, 8004, 8520, 9468, 10464]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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