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.

A358717 A sequence of sorted primes 2 = p_1 < p_2 < ... < p_m such that (p_i + 1)/2 divides the product p_1*p_2*...*p_(i-1) of the earlier primes and each prime factor of (p_i-1)/2 is a prime factor of the product.

Table of values

n a(n)
1 2
2 3
3 5
4 11
5 19
6 37
7 73
8 109
9 1459
10 2179
11 2917
12 4357
13 8713

List of values

[2, 3, 5, 11, 19, 37, 73, 109, 1459, 2179, 2917, 4357, 8713]

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

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