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.

A380669 Smallest prime p > 10^(n-1) for which successive cyclic shifts of digits by 1, ..., n-1 positions to the right are all prime, or -1 if no such p exists.

Table of values

n a(n)
1 2
2 11
3 113
4 1193
5 11939
6 193939
7 93717773
8 139133119
9 15193739179
10 153991739117
11 877317793117

List of values

[2, 11, 113, 1193, 11939, 193939, 93717773, 139133119, 15193739179, 153991739117, 877317793117]

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

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