1754322480

Appears in sequences

• a(n) = H(2*n)*(2*n)!/n! where H(n) = Sum_{k=1..n} 1/k, the n-th harmonic number.at n=8A123989
• a(n) = H(n)*n!/(floor(n/2))!, where H(n) = Sum_{k=1..n} 1/k, the n-th harmonic number.at n=16A124078