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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.

A007513 a(n) = initial prime of n consecutive primes such that first and last have same digit sum.

Table of values

n a(n)
1 2
2 523
3 109
4 79
5 2
6 13
7 5
8 127
9 47
10 17
11 5
12 127
13 53
14 17
15 7
16 67
17 31
18 37
19 47
20 37
21 83
22 11
23 43
24 19
25 157
26 2
27 37
28 5
29 47
30 5
31 19
32 67
33 7
34 29
35 19
36 53
37 31
38 73
39 53
40 29
41 139
42 13
43 67
44 83
45 7
46 47
47 29
48 17
49 79
50 7
51 19
52 37
53 59
54 43
55 271
56 19
57 29
58 181
59 167
60 59
61 97
62 5
63 149
64 7
65 59
66 337
67 41
68 53
69 43
70 127

List of values

[2, 523, 109, 79, 2, 13, 5, 127, 47, 17, 5, 127, 53, 17, 7, 67, 31, 37, 47, 37, 83, 11, 43, 19, 157, 2, 37, 5, 47, 5, 19, 67, 7, 29, 19, 53, 31, 73, 53, 29, 139, 13, 67, 83, 7, 47, 29, 17, 79, 7, 19, 37, 59, 43, 271, 19, 29, 181, 167, 59, 97, 5, 149, 7, 59, 337, 41, 53, 43, 127]

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

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