A269575 Primes of the form 10^n + 91.

101, 191, 1091, 10091, 100000000091, 1000000000091, 1000000000000091

Offset

1,1

Links

Table of n, a(n) for n=1..7.

Formula

a(n)= 10^A110918(n) + 91.

Mathematica

Select[10^Range[10] + 91, PrimeQ] (* Alonso del Arte, Mar 01 2016 *)

Prog

(PARI) lista(nn) = for(n=1, nn, if(ispseudoprime(p=10^n+91), print1(p, ", "))); \\ Altug Alkan, Apr 16 2016

Crossrefs

Cf. A110918.

Sequence in context: A045978 A325071 A238671 * A177032 A141913 A100775

Adjacent sequences: A269572 A269573 A269574 * A269576 A269577 A269578

Keyword

nonn

Author

Mironov Alexander, Mar 01 2016

Status

approved