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.

A263562 Primes p such that for every k >= 1, p*2^k - 1 has a divisor in the set {3, 5, 13, 17, 97, 241, 257}.

Table of values

n a(n)
1 1865978047
2 1889699677
3 2362339121
4 3637126963
5 11776639499
6 19321614419
7 20000692169
8 20111311169
9 20592473107
10 20597584901
11 21477425107
12 23368396573
13 23479945327
14 25326720611
15 26161244323
16 27190405961
17 27380064223
18 27474950743
19 31467088979

List of values

[1865978047, 1889699677, 2362339121, 3637126963, 11776639499, 19321614419, 20000692169, 20111311169, 20592473107, 20597584901, 21477425107, 23368396573, 23479945327, 25326720611, 26161244323, 27190405961, 27380064223, 27474950743, 31467088979]

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

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