Odd primes p for which there are exactly as many primes in the range [prevprime(p)^2, prevprime(p)*p] as there are in the range [prevprime(p)*p, p^2], where prevprime(p) gives the previous prime before prime p.
A256473
Odd primes p for which there are exactly as many primes in the range [prevprime(p)^2, prevprime(p)*p] as there are in the range [prevprime(p)*p, p^2], where prevprime(p) gives the previous prime before prime p.
Terms
- a(0) =3a(1) =31a(2) =47a(3) =61a(4) =73a(5) =467a(6) =607a(7) =883a(8) =1051a(9) =1109a(10) =1181a(11) =1453a(12) =2333a(13) =2593a(14) =2693a(15) =2699a(16) =2789a(17) =3089a(18) =3109a(19) =3919a(20) =8563a(21) =12893a(22) =13009a(23) =13807a(24) =13877a(25) =13879a(26) =15511a(27) =18461a(28) =19483a(29) =20389
External references
- oeis: A256473