cp's OEIS Frontend

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.

A143218 Triangle read by rows, A127775 * A000012 * A127775; 1<=k<=n.

Table of values

n a(n)
1 1
2 3
3 9
4 5
5 15
6 25
7 7
8 21
9 35
10 49
11 9
12 27
13 45
14 63
15 81
16 11
17 33
18 55
19 77
20 99
21 121
22 13
23 39
24 65
25 91
26 117
27 143
28 169
29 15
30 45
31 75
32 105
33 135
34 165
35 195
36 225
37 17
38 51
39 85
40 119
41 153
42 187
43 221
44 255
45 289
46 19
47 57
48 95
49 133
50 171
51 209
52 247
53 285
54 323
55 361
56 21
57 63
58 105
59 147
60 189
61 231
62 273
63 315
64 357
65 399
66 441

List of values

[1, 3, 9, 5, 15, 25, 7, 21, 35, 49, 9, 27, 45, 63, 81, 11, 33, 55, 77, 99, 121, 13, 39, 65, 91, 117, 143, 169, 15, 45, 75, 105, 135, 165, 195, 225, 17, 51, 85, 119, 153, 187, 221, 255, 289, 19, 57, 95, 133, 171, 209, 247, 285, 323, 361, 21, 63, 105, 147, 189, 231, 273, 315, 357, 399, 441]

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

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