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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.

A342953 a(n) is the least prime that starts a string of exactly n primes p_1, p_2, ... p_n where p_{i+1} = A258881(p_i), but A258881(p_n) is not prime.

Table of values

n a(n)
1 2
2 13
3 11
4 19
5 499
6 8851471

List of values

[2, 13, 11, 19, 499, 8851471]

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

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