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.

A232129 Largest prime that can be obtained from n by successively appending digits to the right with the constraint that each of the numbers obtained that way must be prime; a(n)=0 if there is no such prime at all.

Table of values

n a(n)
1 1979339339
2 29399999
3 37337999
4 4391339
5 59393339
6 6733997
7 73939133
8 839
9 9719
10 103997939939
11 113
12 12791333
13 13999133
14 149399
15 15797
16 1637
17 17333
18 1811993
19 1979339339
20 0
21 21139
22 2273993
23 23399339
24 24179399
25 2579939
26 2699393
27 27191939
28 2837
29 29399999
30 3079
31 31379
32 0
33 331999799
34 3491333
35 35393999

List of values

[1979339339, 29399999, 37337999, 4391339, 59393339, 6733997, 73939133, 839, 9719, 103997939939, 113, 12791333, 13999133, 149399, 15797, 1637, 17333, 1811993, 1979339339, 0, 21139, 2273993, 23399339, 24179399, 2579939, 2699393, 27191939, 2837, 29399999, 3079, 31379, 0, 331999799, 3491333, 35393999]

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

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