161256

Appears in sequences

• Triangle T(n, k) = k*(n-1)! - k!, read by rows.at n=39A137260
• T(n,k) is the number of n-step one or two collinear space at a time queen's tours on a k X k board summed over all starting positions.at n=40A187027
• Number of 5-step one or two collinear space at a time queen's tours on an n X n board summed over all starting positions.at n=4A187030
• Expansion of 1/(1 - x/(1 - 4*x)^(3/2))^2.at n=7A382541