5115600domain: NAppears in sequencesLCM of unsigned Stirling numbers of the first kind, s(n,k) for 1 <= k <= n; s(n,k) = number of permutations of {1,2,..,n} with k cycles.at n=6A063039a(n) is the denominator of Sum_{k=1..n} 1 / Stirling1(n,k).at n=6A354479