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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.

A379510 a(n) = n + floor(n*r/t) + floor(n*s/t), where r=2^(1/4), s=2^(1/2), t=2^(3/4).

Table of values

n a(n)
1 1
2 4
3 7
4 9
5 12
6 15
7 16
8 19
9 22
10 25
11 27
12 30
13 32
14 34
15 37
16 40
17 43
18 45
19 47
20 50
21 52
22 55
23 58
24 60
25 63
26 65
27 68
28 70
29 73
30 76
31 78
32 80
33 83
34 86
35 88
36 91
37 94
38 95
39 98
40 101
41 103
42 106
43 109
44 111
45 113
46 116
47 119
48 121
49 124
50 127
51 129
52 131
53 134
54 137
55 139
56 142
57 144
58 147
59 149
60 152

List of values

[1, 4, 7, 9, 12, 15, 16, 19, 22, 25, 27, 30, 32, 34, 37, 40, 43, 45, 47, 50, 52, 55, 58, 60, 63, 65, 68, 70, 73, 76, 78, 80, 83, 86, 88, 91, 94, 95, 98, 101, 103, 106, 109, 111, 113, 116, 119, 121, 124, 127, 129, 131, 134, 137, 139, 142, 144, 147, 149, 152]