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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.

A080036 a(n) = n + round(sqrt(2*n)) + 1.

Table of values

n a(n)
0 1
1 3
2 5
3 6
4 8
5 9
6 10
7 12
8 13
9 14
10 15
11 17
12 18
13 19
14 20
15 21
16 23
17 24
18 25
19 26
20 27
21 28
22 30
23 31
24 32
25 33
26 34
27 35
28 36
29 38
30 39
31 40
32 41
33 42
34 43
35 44
36 45
37 47
38 48
39 49
40 50
41 51
42 52
43 53
44 54
45 55
46 57
47 58
48 59
49 60
50 61
51 62
52 63
53 64
54 65
55 66
56 68
57 69
58 70
59 71
60 72
61 73
62 74
63 75
64 76
65 77
66 78
67 80
68 81
69 82
70 83
71 84
72 85
73 86

List of values

[1, 3, 5, 6, 8, 9, 10, 12, 13, 14, 15, 17, 18, 19, 20, 21, 23, 24, 25, 26, 27, 28, 30, 31, 32, 33, 34, 35, 36, 38, 39, 40, 41, 42, 43, 44, 45, 47, 48, 49, 50, 51, 52, 53, 54, 55, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 80, 81, 82, 83, 84, 85, 86]

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

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