7616307699domain: NAppears in sequencesNumbers m such that d(m) = d(m+1) and d(k) < d(m) for all k < m such that d(k) = d(k+1), where d(m) is the number of divisors of m (A000005).at n=20A333052Numbers k such k | A378056(k) and (k+1) | A378056(k+1).at n=5A378059