8089804800

Appears in sequences

• a(0) = a(1) = 1, a(n) = n! / a(n-2).at n=20A214916
• a(n) = (2*n)!/a(n-1), with a(0)=1.at n=10A372986
• a(n) = (1/3)*A374654(n).at n=9A374655