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.

A132118 Triangle read by rows: T(n,k) = n*(n-1)/2 + 2*k - 1.

Table of values

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

List of values

[1, 2, 4, 4, 6, 8, 7, 9, 11, 13, 11, 13, 15, 17, 19, 16, 18, 20, 22, 24, 26, 22, 24, 26, 28, 30, 32, 34, 29, 31, 33, 35, 37, 39, 41, 43, 37, 39, 41, 43, 45, 47, 49, 51, 53, 46, 48, 50, 52, 54, 56, 58, 60, 62, 64, 56, 58, 60, 62, 64, 66, 68, 70, 72, 74, 76]