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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.

A121856 a(n) = Floor(e*sqrt(n)).

Table of values

n a(n)
0 0
1 2
2 3
3 4
4 5
5 6
6 6
7 7
8 7
9 8
10 8
11 9
12 9
13 9
14 10
15 10
16 10
17 11
18 11
19 11
20 12
21 12
22 12
23 13
24 13
25 13
26 13
27 14
28 14
29 14
30 14
31 15
32 15
33 15
34 15
35 16
36 16
37 16
38 16
39 16
40 17
41 17
42 17
43 17
44 18
45 18
46 18
47 18
48 18
49 19
50 19
51 19
52 19
53 19
54 19
55 20
56 20
57 20
58 20
59 20
60 21
61 21
62 21
63 21
64 21
65 21
66 22
67 22
68 22
69 22
70 22
71 22
72 23
73 23

List of values

[0, 2, 3, 4, 5, 6, 6, 7, 7, 8, 8, 9, 9, 9, 10, 10, 10, 11, 11, 11, 12, 12, 12, 13, 13, 13, 13, 14, 14, 14, 14, 15, 15, 15, 15, 16, 16, 16, 16, 16, 17, 17, 17, 17, 18, 18, 18, 18, 18, 19, 19, 19, 19, 19, 19, 20, 20, 20, 20, 20, 21, 21, 21, 21, 21, 21, 22, 22, 22, 22, 22, 22, 23, 23]

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

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