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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.

A169603 Triangle T(n,k) = k*(4*n+k+2), read by rows.

Table of values

n a(n)
0 0
1 0
2 7
3 0
4 11
5 24
6 0
7 15
8 32
9 51
10 0
11 19
12 40
13 63
14 88
15 0
16 23
17 48
18 75
19 104
20 135
21 0
22 27
23 56
24 87
25 120
26 155
27 192
28 0
29 31
30 64
31 99
32 136
33 175
34 216
35 259
36 0
37 35
38 72
39 111
40 152
41 195
42 240
43 287
44 336
45 0
46 39
47 80
48 123
49 168
50 215
51 264
52 315
53 368
54 423
55 0
56 43
57 88
58 135
59 184
60 235
61 288
62 343
63 400
64 459
65 520

List of values

[0, 0, 7, 0, 11, 24, 0, 15, 32, 51, 0, 19, 40, 63, 88, 0, 23, 48, 75, 104, 135, 0, 27, 56, 87, 120, 155, 192, 0, 31, 64, 99, 136, 175, 216, 259, 0, 35, 72, 111, 152, 195, 240, 287, 336, 0, 39, 80, 123, 168, 215, 264, 315, 368, 423, 0, 43, 88, 135, 184, 235, 288, 343, 400, 459, 520]

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

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