80627040

Appears in sequences

• Generalized Stirling numbers, [n+2,3]_2: a(n) = n! * Sum_{k=0..n-1} (k+1)/(n-k).at n=10A001705
• Sum_{k|n} a(k)/k! = Sum_{j=1 to n} 1/j, sum on left is over positive divisors k of n.at n=10A067857
• Generalized Stirling numbers of the first kind.at n=11A081050
• a(n) = (n-1)!*Sum_{k=1..n, gcd(k,n)=1} H(k), where H(k) = Sum_{j=1..k} 1/j, the k-th harmonic number.at n=10A119769
• Triangle of generalized Stirling numbers.at n=45A376582