%I
%S 0,20,54,66,104,140,194,204,210,260,264,276,360,390,546,570,600,794,
%T 836,846,860,986,1086,1140,1146,1160,1254,1260,1284,1296,1350,1436,
%U 1440,1454,1506,1650,1706,1736,1770,1814,1826,1860,1904,1970
%N Numbers n such that both 137*n + 139 and 139*n + 137 are primes.
%C Intersection of A108027 and A108028.
%t s={};Do[If[PrimeQ[137*n+139]&&PrimeQ[139*n+137], s=Append[s, n]], {n, 2000}];s
%Y Cf. A108027, A108028.
%K nonn
%O 1,2
%A _Zak Seidov_, Jun 03 2005
