Least k such that k*P(n)#/2 - 2 and k*P(n)#/2 + 2 are both primes, where P(i)= i-th prime, P(i)# = i-th primorial.
A096937
Least k such that k*P(n)#/2 - 2 and k*P(n)#/2 + 2 are both primes, where P(i)= i-th prime, P(i)# = i-th primorial.
Terms
- a(0) =5a(1) =3a(2) =1a(3) =1a(4) =3a(5) =1a(6) =3a(7) =41a(8) =27a(9) =3a(10) =1a(11) =171a(12) =97a(13) =19a(14) =35a(15) =13a(16) =217a(17) =57a(18) =79a(19) =133a(20) =41a(21) =219a(22) =85a(23) =43a(24) =477a(25) =205a(26) =35a(27) =455a(28) =635a(29) =275
External references
- oeis: A096937