OFFSET
1,1
COMMENTS
Ormiston pairs must be of form (100n+13,100n+31), (100n+37,100n+73), (100n+79,100n+97).
There cannot be more than three Ormiston prime pairs in a century.
PROG
(PARI) is(n)=isprime(100*n+13) && nextprime(100*n+17)==100*n+31 && isprime(100*n+37) && nextprime(100*n+39)==100*n+73 && isprime(100*n+79) && nextprime(100*n+81)==100*n+97 \\ Charles R Greathouse IV, Mar 07 2016
CROSSREFS
KEYWORD
base,nonn
AUTHOR
Ray Chandler and Ki Punches, Jul 16 2009
STATUS
approved