79751domain: NAppears in sequencesValues of w(k) when w(k-2), w(k-1), and w(k) are all odd, where w is A336957.at n=20A338071Semiprimes p*q such that p*q+p+q, p*q-(p+q), p*q+2*(p+q) and p*q-2*(p+q) are all primes.at n=45A356765