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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A052999 Take n-th prime p, let P = all primes that can be obtained by permuting the digits of p and possibly adding or omitting zeros; a(n) = |p-q| where q in P is the closest to p but different from p (a(n)=0 if no such q exists). 5
0, 0, 0, 0, 90, 18, 54, 90, 1980, 199980, 18, 36, 360, 3960, 3960, 450, 450, 540, 540, 36, 36, 18, 0, 720, 18, 90, 72, 36, 90, 18, 144, 18, 36, 54, 270, 900, 414, 450, 450, 36, 18, 630, 720, 54, 18, 720, 810, 1980, 1800, 1800, 2790, 54, 180, 270, 20250, 1800, 1800, 144 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,5

LINKS

Table of n, a(n) for n=1..58.

EXAMPLE

a(6)=18 since 6th prime is 13 and 31-13=18. a(9)=1980 because 9th prime is 23 and the smallest prime in P different from 23 is 2003; 2003-23=1980.

CROSSREFS

Cf. A052902, A052998, A053544, A052495, A052484.

Sequence in context: A078293 A247899 A247902 * A050662 A236180 A033410

Adjacent sequences:  A052996 A052997 A052998 * A053000 A053001 A053002

KEYWORD

base,easy,nonn

AUTHOR

N. J. A. Sloane, Mar 16 2000

EXTENSIONS

More terms from Asher Natan Auel (auela(AT)reed.edu), May 12, 2000

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 July 17 20:45 EDT 2019. Contains 325109 sequences. (Running on oeis4.)