150334domain: NAppears in sequencesNumber of -n..n arrays x(0..2) of 3 elements with zeroth through 2nd differences all nonzero.at n=26A199944Semiprimes A001358(k) = p*q such that p*q+p+q and r*s+r+s are consecutive primes, where A001358(k+1)=r*s.at n=24A330478