login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A338700 Start of the first run of n or more consecutive primes which are Sophie Germain primes. 6
2, 2, 2, 1433849, 9816899, 445480319, 298098924131, 1372604395439 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..8.

Carlos Rivera, Puzzle 71. Consecutive primes and Cunningham chains, The Prime Puzzles and Problems Connection.

EXAMPLE

a(4) = 1433849 because 1433849, 1433891, 1433903, 1433909 are four consecutive primes and they are terms of A005384. The sequence of numbers with this property is 1433849, 1989329, 2227853, ... and 1433849 is the first term.

CROSSREFS

Cf. A005384, A047989, A339474, A339477.

Sequence in context: A186069 A280842 A244442 * A246471 A079243 A289814

Adjacent sequences:  A338697 A338698 A338699 * A338701 A338702 A338703

KEYWORD

nonn,more

AUTHOR

Metin Sariyar, Apr 24 2021

EXTENSIONS

a(8) from Martin Ehrenstein, Apr 29 2021

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified January 17 17:47 EST 2022. Contains 350402 sequences. (Running on oeis4.)