457795

Appears in sequences

• Number of paths of length n-1 a king can take from one side of an n X n chessboard to the opposite side.at n=10A081113
• Number of base 11 n-digit numbers with adjacent digits differing by one or less.at n=11A126365
• Triangle I(m,n) read by rows: number of perfect lattice paths on the m*n board.at n=65A296449