Lesser of twin-bin primes: primes p such that p+2, x and y are primes, where x is concatenation of binary representations of p and p+2, and y is concatenation of binary representations of p+2 and p: x = p * 2^A070939(p+2) + p+2, y = (p+2) * 2^A070939(p) + p.
A232239
Lesser of twin-bin primes: primes p such that p+2, x and y are primes, where x is concatenation of binary representations of p and p+2, and y is concatenation of binary representations of p+2 and p: x = p * 2^A070939(p+2) + p+2, y = (p+2) * 2^A070939(p) + p.
Terms
- a(0) =3a(1) =5a(2) =269a(3) =16649a(4) =27689a(5) =29129a(6) =82889a(7) =93239a(8) =129629a(9) =274199a(10) =289169a(11) =309479a(12) =336899a(13) =349079a(14) =371339a(15) =374639a(16) =415109a(17) =454709a(18) =463889a(19) =492719a(20) =1051079a(21) =1063919a(22) =1127309a(23) =1198289a(24) =1209779a(25) =1229519a(26) =1268789a(27) =1350959a(28) =1354649a(29) =1355279
External references
- oeis: A232239