Number of chess positions that can be obtained in exactly one way in n plies.

A089957

Number of chess positions that can be obtained in exactly one way in n plies.

Terms

    a(0) =1a(1) =20a(2) =400a(3) =1862a(4) =9825a(5) =53516a(6) =311642a(7) =2018993a(8) =12150635a(9) =69284509a(10) =382383387a(11) =1994236773

External references