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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.

A341090 Fully multiplicative: for any prime p, if the reversal of p in base 10, say q, is prime, then a(p) = q, otherwise a(p) = p.

Table of values

n a(n)
1 1
2 2
3 3
4 4
5 5
6 6
7 7
8 8
9 9
10 10
11 11
12 12
13 31
14 14
15 15
16 16
17 71
18 18
19 19
20 20
21 21
22 22
23 23
24 24
25 25
26 62
27 27
28 28
29 29
30 30
31 13
32 32
33 33
34 142
35 35
36 36
37 73
38 38
39 93
40 40
41 41
42 42
43 43
44 44
45 45
46 46
47 47
48 48
49 49
50 50
51 213
52 124
53 53
54 54
55 55
56 56
57 57
58 58
59 59
60 60
61 61
62 26
63 63
64 64
65 155
66 66

List of values

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 31, 14, 15, 16, 71, 18, 19, 20, 21, 22, 23, 24, 25, 62, 27, 28, 29, 30, 13, 32, 33, 142, 35, 36, 73, 38, 93, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 213, 124, 53, 54, 55, 56, 57, 58, 59, 60, 61, 26, 63, 64, 155, 66]

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

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