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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.

A309566 a(n) is the least prime that can be written as a sequence of primes separated by n single zeros, and where every 0-splitting is prime.

Table of values

n a(n)
1 307
2 130307
3 309370307
4 30281172370306703

List of values

[307, 130307, 309370307, 30281172370306703]

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

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