2488320000

Appears in sequences

• Triangle with a(n,1) = n and a(n,k) = a(n,k-1) * a(n-1,k-1).at n=19A064319
• Let k(n) = mod(3,n)-1. Then a(n) = 4*a(n-1) if n is odd, otherwise ((5+k(n))/4)*a(n-1), with a(0) = 1, a(1) = 2.at n=27A123761