cp's OEIS Frontend

A162892 Integers n such that the century defined by the interval [100n+1,100n+100] (i.e., the (n+1)-st century) contains exactly three Ormiston prime pairs.

%I A162892 #9 Mar 07 2016 13:09:15
%S A162892 651507,1057749,1263729,1666162,2527374,3620083,3850824,4925140,
%T A162892 5418973,8255451,8300166,8318772,8389776,9829099,10876176,11419227,
%U A162892 12195316,14241925,15170550,15864637,15876420,16868593,16892233,17123505,18032409
%N A162892 Integers n such that the century defined by the interval [100n+1,100n+100] (i.e., the (n+1)-st century) contains exactly three Ormiston prime pairs.
%C A162892 Ormiston pairs must be of form (100n+13,100n+31), (100n+37,100n+73), (100n+79,100n+97).
%C A162892 There cannot be more than three Ormiston prime pairs in a century.
%o A162892 (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
%Y A162892 Cf. A162893.
%K A162892 base,nonn
%O A162892 1,1
%A A162892 _Ray Chandler_ and _Ki Punches_, Jul 16 2009