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.

A356754 Triangle read by rows: T(n,k) = ((n-1)*(n+2))/2 + 2*k.

Table of values

n a(n)
1 2
2 4
3 6
4 7
5 9
6 11
7 11
8 13
9 15
10 17
11 16
12 18
13 20
14 22
15 24
16 22
17 24
18 26
19 28
20 30
21 32
22 29
23 31
24 33
25 35
26 37
27 39
28 41
29 37
30 39
31 41
32 43
33 45
34 47
35 49
36 51
37 46
38 48
39 50
40 52
41 54
42 56
43 58
44 60
45 62
46 56
47 58
48 60
49 62
50 64
51 66
52 68
53 70
54 72
55 74
56 67
57 69
58 71
59 73
60 75
61 77
62 79
63 81
64 83
65 85
66 87

List of values

[2, 4, 6, 7, 9, 11, 11, 13, 15, 17, 16, 18, 20, 22, 24, 22, 24, 26, 28, 30, 32, 29, 31, 33, 35, 37, 39, 41, 37, 39, 41, 43, 45, 47, 49, 51, 46, 48, 50, 52, 54, 56, 58, 60, 62, 56, 58, 60, 62, 64, 66, 68, 70, 72, 74, 67, 69, 71, 73, 75, 77, 79, 81, 83, 85, 87]

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

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