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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.

A215249 a(n) is the smallest number m >= n such that m^2 + n is a prime.

Table of values

n a(n)
1 1
2 3
3 4
4 5
5 6
6 11
7 8
8 9
9 10
10 11
11 24
12 13
13 16
14 15
15 16
16 21
17 24
18 19
19 20
20 21
21 40
22 25
23 24
24 35
25 26
26 69
27 28
28 33
29 30
30 31
31 34
32 39
33 56
34 35
35 48
36 49
37 38
38 39
39 50
40 41
41 54
42 47
43 44
44 45
45 46
46 49
47 48
48 53
49 50
50 57
51 56
52 53
53 54
54 55
55 56
56 69
57 64
58 59
59 60
60 67
61 64
62 105
63 64
64 65
65 66
66 71
67 68
68 75

List of values

[1, 3, 4, 5, 6, 11, 8, 9, 10, 11, 24, 13, 16, 15, 16, 21, 24, 19, 20, 21, 40, 25, 24, 35, 26, 69, 28, 33, 30, 31, 34, 39, 56, 35, 48, 49, 38, 39, 50, 41, 54, 47, 44, 45, 46, 49, 48, 53, 50, 57, 56, 53, 54, 55, 56, 69, 64, 59, 60, 67, 64, 105, 64, 65, 66, 71, 68, 75]

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

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