[1,9,132,2700,70920,2275560,86264640,3772681920,
186972105600,10355595465600,633892275878400,
42495895579737600,3096545573029708800,
243680880958010496000,20596410256606119936000,
1860881636529774802944000,
178975197401013144907776000,
18256461815785805072068608000]
|