login
This site is supported by donations to The OEIS Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A239006 Difference between the smallest 10^n-digit member of a cousin prime pair and 10^(10^n - 1). 0
2, 93, 22857, 5352807, 24204297 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

LINKS

Table of n, a(n) for n=0..4.

G. L. Honaker, Jr. and Chris Caldwell, Prime Curios! 10000...22857 (100-digits)

Eric Weisstein's World of Mathematics, Cousin Primes

MATHEMATICA

lst = {}; Do[s = 10^(10^n - 1); n = NextPrime[s]; While[! PrimeQ[n + 4], n = NextPrime[n]]; AppendTo[lst, n - s], {n, 0, 2}]; lst

CROSSREFS

Cf. A023200.

Sequence in context: A042057 A214542 A137322 * A248627 A290936 A287611

Adjacent sequences:  A239003 A239004 A239005 * A239007 A239008 A239009

KEYWORD

nonn,base,hard,more

AUTHOR

Arkadiusz Wesolowski, Mar 08 2014

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 October 23 12:19 EDT 2019. Contains 328345 sequences. (Running on oeis4.)