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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.

A168281 Triangle T(n,m) = 2*(min(n - m + 1, m))^2 read by rows.

Table of values

n a(n)
1 2
2 2
3 2
4 2
5 8
6 2
7 2
8 8
9 8
10 2
11 2
12 8
13 18
14 8
15 2
16 2
17 8
18 18
19 18
20 8
21 2
22 2
23 8
24 18
25 32
26 18
27 8
28 2
29 2
30 8
31 18
32 32
33 32
34 18
35 8
36 2
37 2
38 8
39 18
40 32
41 50
42 32
43 18
44 8
45 2
46 2
47 8
48 18
49 32
50 50
51 50
52 32
53 18
54 8
55 2
56 2
57 8
58 18
59 32
60 50
61 72
62 50
63 32
64 18
65 8
66 2
67 2
68 8
69 18
70 32
71 50
72 72
73 72
74 50
75 32
76 18
77 8
78 2
79 2
80 8
81 18
82 32
83 50
84 72
85 98
86 72

List of values

[2, 2, 2, 2, 8, 2, 2, 8, 8, 2, 2, 8, 18, 8, 2, 2, 8, 18, 18, 8, 2, 2, 8, 18, 32, 18, 8, 2, 2, 8, 18, 32, 32, 18, 8, 2, 2, 8, 18, 32, 50, 32, 18, 8, 2, 2, 8, 18, 32, 50, 50, 32, 18, 8, 2, 2, 8, 18, 32, 50, 72, 50, 32, 18, 8, 2, 2, 8, 18, 32, 50, 72, 72, 50, 32, 18, 8, 2, 2, 8, 18, 32, 50, 72, 98, 72]

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