OFFSET
1,1
LINKS
P. CAMI, Table of n, a(n) for n = 1..5000
PROG
(PARI) a(n) = for(k=1, oo, if(ispseudoprime(k*(2^n)*((2^n-1)^2)-1), return(k))); \\ Jinyuan Wang, Feb 25 2020
CROSSREFS
KEYWORD
nonn
AUTHOR
Pierre CAMI, Dec 12 2009
EXTENSIONS
Extended by Ray Chandler, Dec 19 2009
STATUS
approved