3374967940

Appears in sequences

• Number of closed Knight's tours on a 6 X n board.at n=8A175881
• Number of closed knight's tours in the first 2n cells of a 6 X ceiling(2n/6) board.at n=16A383662
• Number of undirected closed knight's tours on a 9 X (2n) board.at n=2A391999