Primes k such that the concatenation of (b, k, b) and (k, b, k) are both prime, where b is the binary representation of k.

A389801

Primes k such that the concatenation of (b, k, b) and (k, b, k) are both prime, where b is the binary representation of k.

Terms

    a(0) =31a(1) =3833a(2) =5297a(3) =10139a(4) =10631a(5) =11059a(6) =18413a(7) =18919a(8) =31259a(9) =32633a(10) =32941a(11) =33893a(12) =34231a(13) =37907a(14) =39503a(15) =42533a(16) =43973a(17) =45077a(18) =47161a(19) =51971a(20) =58367a(21) =61141a(22) =62653a(23) =63521a(24) =70393a(25) =73133a(26) =75193a(27) =76831a(28) =85639a(29) =95479

External references