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.

A155724 Triangle read by rows: T(n, k) = 2*n*k + n + k - 4.

Table of values

n a(n)
1 0
2 3
3 8
4 6
5 13
6 20
7 9
8 18
9 27
10 36
11 12
12 23
13 34
14 45
15 56
16 15
17 28
18 41
19 54
20 67
21 80
22 18
23 33
24 48
25 63
26 78
27 93
28 108
29 21
30 38
31 55
32 72
33 89
34 106
35 123
36 140
37 24
38 43
39 62
40 81
41 100
42 119
43 138
44 157
45 176
46 27
47 48
48 69
49 90
50 111
51 132
52 153
53 174
54 195
55 216
56 30
57 53
58 76
59 99
60 122
61 145
62 168
63 191
64 214
65 237
66 260

List of values

[0, 3, 8, 6, 13, 20, 9, 18, 27, 36, 12, 23, 34, 45, 56, 15, 28, 41, 54, 67, 80, 18, 33, 48, 63, 78, 93, 108, 21, 38, 55, 72, 89, 106, 123, 140, 24, 43, 62, 81, 100, 119, 138, 157, 176, 27, 48, 69, 90, 111, 132, 153, 174, 195, 216, 30, 53, 76, 99, 122, 145, 168, 191, 214, 237, 260]

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

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