Dihedral calculator primes: p, p upside down, p in a mirror, p upside-down-and-in-a-mirror are all primes.
A134996
Dihedral calculator primes: p, p upside down, p in a mirror, p upside-down-and-in-a-mirror are all primes.
Terms
- a(0) =2a(1) =5a(2) =11a(3) =101a(4) =181a(5) =1181a(6) =1811a(7) =18181a(8) =108881a(9) =110881a(10) =118081a(11) =120121a(12) =121021a(13) =121151a(14) =150151a(15) =151051a(16) =151121a(17) =180181a(18) =180811a(19) =181081a(20) =188011a(21) =188801a(22) =1008001a(23) =1022201a(24) =1028011a(25) =1055501a(26) =1058011a(27) =1082801a(28) =1085801a(29) =1088081
External references
- oeis: A134996