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.

A001259 A sequence of sorted odd primes 3 = p_1 < p_2 < ... < p_m such that p_i-2 divides the product p_1*p_2*...*p_(i-1) of the earlier primes and each prime factor of p_i-1 is a prime factor of twice the product.

Table of values

n a(n)
1 3
2 5
3 7
4 17
5 19
6 37
7 97
8 113
9 257
10 401
11 487
12 631
13 971
14 1297
15 1801
16 19457
17 22051
18 28817
19 65537
20 157303
21 160001

List of values

[3, 5, 7, 17, 19, 37, 97, 113, 257, 401, 487, 631, 971, 1297, 1801, 19457, 22051, 28817, 65537, 157303, 160001]

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

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