Smaller of twin primes {p, p+2} whose average p+1 = k*q is the least multiple of the n-th primorial number q such that k*q-1 and k*q+1 are twin primes.
A060255
Smaller of twin primes {p, p+2} whose average p+1 = k*q is the least multiple of the n-th primorial number q such that k*q-1 and k*q+1 are twin primes.
Terms
- a(0) =3a(1) =5a(2) =29a(3) =419a(4) =2309a(5) =180179a(6) =4084079a(7) =106696589a(8) =892371479a(9) =103515091679
External references
- oeis: A060255