login
Strong pseudoprimes to base 17.
2

%I #16 Apr 25 2016 11:45:28

%S 9,91,145,781,1111,2821,4033,4187,5365,5833,6697,7171,15805,19729,

%T 21781,22791,24211,26245,31621,33001,33227,34441,35371,38081,42127,

%U 49771,71071,74665,77293,78881,88831,96433,97921,98671,101101,102311,125563,129493

%N Strong pseudoprimes to base 17.

%H R. J. Mathar, <a href="/A020243/b020243.txt">Table of n, a(n) for n = 1..748</a>

%H <a href="/index/Ps#pseudoprimes">Index entries for sequences related to pseudoprimes</a>

%o (PARI) /* with A001262 */

%o isA020243(n)={ isStrongPsp(n,17) }

%o { for(n=1,300000000,

%o if(isA020243(n), print(n) ;) ;

%o ) ;

%o } /* R. J. Mathar, Mar 07 2012 */

%Y Superset of A188755.

%K nonn

%O 1,1

%A _David W. Wilson_