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.

A057843 a(n) = floor(n*tau^2) - 3, where tau = (1+sqrt(5))/2.

Table of values

n a(n)
1 -1
2 2
3 4
4 7
5 10
6 12
7 15
8 17
9 20
10 23
11 25
12 28
13 31
14 33
15 36
16 38
17 41
18 44
19 46
20 49
21 51
22 54
23 57
24 59
25 62
26 65
27 67
28 70
29 72
30 75
31 78
32 80
33 83
34 86
35 88
36 91
37 93
38 96
39 99
40 101
41 104
42 106
43 109
44 112
45 114
46 117
47 120
48 122
49 125
50 127
51 130
52 133
53 135
54 138
55 140
56 143
57 146
58 148
59 151
60 154
61 156
62 159

List of values

[-1, 2, 4, 7, 10, 12, 15, 17, 20, 23, 25, 28, 31, 33, 36, 38, 41, 44, 46, 49, 51, 54, 57, 59, 62, 65, 67, 70, 72, 75, 78, 80, 83, 86, 88, 91, 93, 96, 99, 101, 104, 106, 109, 112, 114, 117, 120, 122, 125, 127, 130, 133, 135, 138, 140, 143, 146, 148, 151, 154, 156, 159]