158909domain: NPropertiesPrimalityPrimeyesAppears in sequencesNumbers n such that 3*10^n + 2*R_n + 7 is prime, where R_n = 11...1 is the repunit (A002275) of length n.at n=18A102968Triangle read by rows: n-th row lists the smallest set of n+1 consecutive primes with n gaps all divisible by 14.at n=7A284598Prime numbersat n=14592