OFFSET
1,2
PROG
(PARI) is(k) = ispseudoprime(prod(i=1, k, i^!isprime(i)) + prime(k)); \\ Jinyuan Wang, Jan 08 2021
CROSSREFS
KEYWORD
nonn,more
AUTHOR
Jason Earls, Dec 21 2002
EXTENSIONS
a(17)-a(18) from Jinyuan Wang, Jan 08 2021
a(19)-a(21) from Michael S. Branicky, Aug 10 2024
STATUS
approved