Primes which become emirps when rotated by 180 degrees on a digital clock display.

Terms

a(0) =661a(1) =1061a(2) =1091a(3) =1181a(4) =1601a(5) =1811a(6) =1901a(7) =6011a(8) =6991a(9) =10061a(10) =10091a(11) =10861a(12) =11681a(13) =16001a(14) =16981a(15) =19001a(16) =19961a(17) =60601a(18) =60611a(19) =69001a(20) =106861a(21) =108161a(22) =108881a(23) =109891a(24) =110881a(25) =116881a(26) =116911a(27) =118081a(28) =118861a(29) =119101