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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.

A233207 Triangle T(n,k), read by rows, given by T(n+k,k)=2*k*(2*n+1).

Table of values

n a(n)
0 0
1 0
2 2
3 0
4 6
5 4
6 0
7 10
8 12
9 6
10 0
11 14
12 20
13 18
14 8
15 0
16 18
17 28
18 30
19 24
20 10
21 0
22 22
23 36
24 42
25 40
26 30
27 12
28 0
29 26
30 44
31 54
32 56
33 50
34 36
35 14
36 0
37 30
38 52
39 66
40 72
41 70
42 60
43 42
44 16
45 0
46 34
47 60
48 78
49 88
50 90
51 84
52 70
53 48
54 18
55 0
56 38
57 68
58 90
59 104
60 110
61 108
62 98
63 80
64 54
65 20
66 0
67 42
68 76
69 102

List of values

[0, 0, 2, 0, 6, 4, 0, 10, 12, 6, 0, 14, 20, 18, 8, 0, 18, 28, 30, 24, 10, 0, 22, 36, 42, 40, 30, 12, 0, 26, 44, 54, 56, 50, 36, 14, 0, 30, 52, 66, 72, 70, 60, 42, 16, 0, 34, 60, 78, 88, 90, 84, 70, 48, 18, 0, 38, 68, 90, 104, 110, 108, 98, 80, 54, 20, 0, 42, 76, 102]

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

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