949728

Appears in sequences

• Number of 4-step king-knight's tours (piece capable of both kinds of moves) on an n X n board summed over all starting positions.at n=18A187852
• a(n) = 4*3*2*1 + 8*7*6*5 + 12*11*10*9 + 16*15*14*13 + ... + (up to the n-th term).at n=30A319868