422463195

Appears in sequences

• One third of quartic factorial numbers.at n=7A034176
• 4th-order non-linear ("factorial") recursion: a(0)=a(1)=a(2)=a(3)=1, a(n) = (n+1)*a(n-4).at n=30A081407
• a(n) = n! * [x^n] 1/(1 - 4*x)^(n/4).at n=7A303487