141812

Appears in sequences

• Number of ways to place 5 nonattacking queens on a 5 X n board.at n=16A061991
• Number of 4 X n 0..1 arrays with no element equal to more than one of its horizontal and antidiagonal neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards.at n=15A281208
• The profile of the backtrack tree for the sixteen queens problem.at n=5A319236