3068640

Appears in sequences

• a(n) = n! * Sum_{k=ceiling(n/2)..n} 1/k.at n=9A101611
• n! * Sum[k=floor(n/2)..n, 1/k].at n=8A101612
• (2n)! * Sum[k=n..2n, 1/k].at n=4A101613