35558770domain: NAppears in sequencesNumbers n such that there are no primes between S(n) and S(n+1) inclusive where S is the Kempner function A002034.at n=7A015048Numbers n, satisfying A055231(n+1) - A055231(n) = 1, and with n and n+1 not squarefree.at n=27A140394Numbers k such that A063659(k) = A063659(k+1).at n=8A336673