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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.

A332372 Consider a partition of the plane (a_1,a_2) in R X R by the lines a_1*x_1 + a_2*x_2 = 1 for 0 <= x_1 <= m-1, 1 <= x_2 <= 1-1. The cells are (generalized) triangles and quadrilaterals. Triangle read by rows: T(m,n) = total number of edges in the partition for m >= n >= 2.

Table of values

n a(n)
2 9
3 20
4 43
5 35
6 77
7 139
8 54
9 118
10 213
11 327
12 77
13 170
14 310
15 479
16 703
17 104
18 229
19 417
20 642
21 941
22 1259
23 135
24 299
25 546
26 842
27 1236
28 1657
29 2183
30 170
31 376
32 688
33 1062
34 1561
35 2094
36 2759
37 3487
38 209
39 464
40 850
41 1313
42 1933
43 2594
44 3418
45 4321
46 5355
47 252
48 559
49 1024
50 1581
51 2327
52 3118
53 4107
54 5190
55 6431
56 7723

List of values

[9, 20, 43, 35, 77, 139, 54, 118, 213, 327, 77, 170, 310, 479, 703, 104, 229, 417, 642, 941, 1259, 135, 299, 546, 842, 1236, 1657, 2183, 170, 376, 688, 1062, 1561, 2094, 2759, 3487, 209, 464, 850, 1313, 1933, 2594, 3418, 4321, 5355, 252, 559, 1024, 1581, 2327, 3118, 4107, 5190, 6431, 7723]