OFFSET
1,1
LINKS
E. L. Blanton, Jr., S. P. Hurd and J. S. McCranie, On a digraph defined by squaring modulo n, Fibonacci Quart. 30 (Nov. 1992), 322-333.
PROG
(PARI) is(n)=ispseudoprime(2047*2^n+1) \\ Charles R Greathouse IV, Jun 13 2017
CROSSREFS
KEYWORD
nonn,hard,more
AUTHOR
EXTENSIONS
The term 738 was omitted from the reference. 4 more terms Jun 15 1998.
a(19)-a(22) from Michael S. Branicky, Jul 12 2023
STATUS
approved
