Primes p such that p-2 and q are primes, where q is concatenation of binary representations of p and p-2: q = p * 2^L + p-2, where L is the length of binary representation of p-2: L=A070939(p-2).
A232237
Primes p such that p-2 and q are primes, where q is concatenation of binary representations of p and p-2: q = p * 2^L + p-2, where L is the length of binary representation of p-2: L=A070939(p-2).
Terms
- a(0) =5a(1) =7a(2) =31a(3) =271a(4) =283a(5) =433a(6) =1291a(7) =1321a(8) =1429a(9) =1489a(10) =1951a(11) =4723a(12) =5503a(13) =6091a(14) =6133a(15) =6553a(16) =6871a(17) =16651a(18) =16981a(19) =17029a(20) =17191a(21) =17209a(22) =17749a(23) =17791a(24) =18541a(25) =18919a(26) =19471a(27) =20149a(28) =20479a(29) =20551
External references
- oeis: A232237