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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.

A141429 Triangle T(n, k) = (k+1)*(n-k+1), read by rows.

Table of values

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

List of values

[2, 4, 3, 6, 6, 4, 8, 9, 8, 5, 10, 12, 12, 10, 6, 12, 15, 16, 15, 12, 7, 14, 18, 20, 20, 18, 14, 8, 16, 21, 24, 25, 24, 21, 16, 9, 18, 24, 28, 30, 30, 28, 24, 18, 10, 20, 27, 32, 35, 36, 35, 32, 27, 20, 11, 22, 30, 36, 40, 42, 42, 40, 36, 30, 22, 12, 24, 33, 40, 45, 48, 49, 48, 45, 40, 33, 24, 13]

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