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A096211 Primes of the form 10^n + 10^(n-3) - 1. 1
10009, 1000999, 10009999999999, 10009999999999999999999999999999999999, 10009999999999999999999999999999999999999999999999999999999999999, 10009999999999999999999999999999999999999999999999999999999999999999999999999 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 1..10

MATHEMATICA

t={}; Do[m=n; p=10^n+10^(n-3)-1; If[PrimeQ[p], AppendTo[t, p]], {n, 300}]; t (* Vincenzo Librandi, Jul 17 2012 *)

PROG

(PARI) f(n, z) = for(x=z, n, y=10^x+10^(x-z)-1; if(ispseudoprime(y), print1(y", ")))

CROSSREFS

Sequence in context: A256838 A176931 A023335 * A190149 A052095 A033533

Adjacent sequences:  A096208 A096209 A096210 * A096212 A096213 A096214

KEYWORD

nonn,easy

AUTHOR

Cino Hilliard, Jul 28 2004

STATUS

approved

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Last modified January 20 02:42 EST 2018. Contains 297939 sequences.