2437500

Appears in sequences

• a(n) = if n mod 2 = 1 then (n^2-1)*n^3/4 else n^5/4.at n=25A122657
• a(n) = 5^C(n,2)*(5^n-1)/4.at n=4A127849
• The n-th arithmetic derivative of 5^6.at n=8A129152