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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.

A245878 Primes p such that p - d and p + d are also primes, where d is the smallest nonzero digit of p.

Table of values

n a(n)
1 67
2 607
3 6977
4 68897
5 69067
6 69997
7 79867
8 80677
9 88867
10 97967
11 609607
12 660067
13 669667
14 676987
15 678767
16 697687
17 707677
18 766867
19 777677
20 786697
21 866087
22 879667
23 880667
24 886987
25 899687
26 906707
27 909767
28 966997
29 990967
30 6069977
31 6096907
32 6097997
33 6678877

List of values

[67, 607, 6977, 68897, 69067, 69997, 79867, 80677, 88867, 97967, 609607, 660067, 669667, 676987, 678767, 697687, 707677, 766867, 777677, 786697, 866087, 879667, 880667, 886987, 899687, 906707, 909767, 966997, 990967, 6069977, 6096907, 6097997, 6678877]

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

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