60503domain: NAppears in sequencesInterprimes which are of the form s*prime, s=17.at n=22A075292Number of iterations of A268395 needed to reach zero from 2^n: a(n) = A268708(2^n).at n=20A268709Numbers k such that w(k), w(k+1), and w(k+2) are all odd, where w is A360519.at n=19A361106