59124domain: NAppears in sequencesT(n,n-4), where T is the array in A026148.at n=9A026155Numbers n such that a positive number m < n exists such that n-m, n+m, and n*m are oblong numbers (A002378).at n=10A224954a(n) = 3*n*(n^2 + 3*n + 4).at n=26A280304