cp's OEIS Frontend

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.

A115261 Prime numbers such that the absolute difference of the sum of their digits in odd positions and the sum of their digits in even positions is also a prime.

Table of values

n a(n)
1 2
2 3
3 5
4 7
5 13
6 29
7 31
8 41
9 47
10 53
11 61
12 79
13 83
14 97
15 101
16 113
17 137
18 139
19 151
20 157
21 163
22 167
23 173
24 179
25 191
26 193
27 211
28 223
29 227
30 233
31 251
32 269
33 277
34 281
35 283
36 311
37 313
38 337
39 359
40 379
41 383
42 401
43 409
44 421
45 431
46 443
47 467
48 487
49 541
50 557
51 563
52 577
53 599
54 601
55 607
56 641

List of values

[2, 3, 5, 7, 13, 29, 31, 41, 47, 53, 61, 79, 83, 97, 101, 113, 137, 139, 151, 157, 163, 167, 173, 179, 191, 193, 211, 223, 227, 233, 251, 269, 277, 281, 283, 311, 313, 337, 359, 379, 383, 401, 409, 421, 431, 443, 467, 487, 541, 557, 563, 577, 599, 601, 607, 641]

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

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