44860domain: NAppears in sequencesa(n) = T(n,n-4), array T as in A055818.at n=27A055821a(n) = n*(6*n^2 - 8*n + 3).at n=20A272378Integers k such that for all m>k, d(m)/m < d(k)/k where d(j) = Min_{p & q odd primes, 2*j = p+q, p <= q} (q-p)/2.at n=27A335297