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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.

A121899 a(n) = ceiling((Pi + e)*sqrt(n)).

Table of values

n a(n)
0 0
1 6
2 9
3 11
4 12
5 14
6 15
7 16
8 17
9 18
10 19
11 20
12 21
13 22
14 22
15 23
16 24
17 25
18 25
19 26
20 27
21 27
22 28
23 29
24 29
25 30
26 30
27 31
28 32
29 32
30 33
31 33
32 34
33 34
34 35
35 35
36 36
37 36
38 37
39 37
40 38
41 38
42 38
43 39
44 39
45 40
46 40
47 41
48 41
49 42
50 42
51 42
52 43
53 43
54 44
55 44
56 44
57 45
58 45
59 46
60 46
61 46
62 47
63 47
64 47
65 48
66 48
67 48
68 49
69 49

List of values

[0, 6, 9, 11, 12, 14, 15, 16, 17, 18, 19, 20, 21, 22, 22, 23, 24, 25, 25, 26, 27, 27, 28, 29, 29, 30, 30, 31, 32, 32, 33, 33, 34, 34, 35, 35, 36, 36, 37, 37, 38, 38, 38, 39, 39, 40, 40, 41, 41, 42, 42, 42, 43, 43, 44, 44, 44, 45, 45, 46, 46, 46, 47, 47, 47, 48, 48, 48, 49, 49]

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

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