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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.

A166499 Concatenation of the rightmost digit of the n-th prime and the leftmost digit of the (n+1)th prime.

Table of values

n a(n)
1 23
2 35
3 57
4 71
5 11
6 31
7 71
8 92
9 32
10 93
11 13
12 74
13 14
14 34
15 75
16 35
17 96
18 16
19 77
20 17
21 37
22 98
23 38
24 99
25 71
26 11
27 31
28 71
29 91
30 31
31 71
32 11
33 71
34 91
35 91
36 11
37 71
38 31
39 71
40 31
41 91
42 11
43 11
44 31
45 71
46 92
47 12
48 32
49 72
50 92
51 32
52 92
53 12
54 12
55 72
56 32
57 92
58 12
59 72
60 12
61 32
62 33
63 73
64 13
65 33
66 73
67 13
68 73
69 73

List of values

[23, 35, 57, 71, 11, 31, 71, 92, 32, 93, 13, 74, 14, 34, 75, 35, 96, 16, 77, 17, 37, 98, 38, 99, 71, 11, 31, 71, 91, 31, 71, 11, 71, 91, 91, 11, 71, 31, 71, 31, 91, 11, 11, 31, 71, 92, 12, 32, 72, 92, 32, 92, 12, 12, 72, 32, 92, 12, 72, 12, 32, 33, 73, 13, 33, 73, 13, 73, 73]

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

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