On a 3 X 3 board, the number of n-move paths for a chess king.

A086349

On a 3 X 3 board, the number of n-move paths for a chess king.

Terms

    a(0) =1a(1) =9a(2) =40a(3) =200a(4) =952a(5) =4624a(6) =22272a(7) =107648a(8) =519552a(9) =2509056a(10) =12113920a(11) =58492928a(12) =282425344a(13) =1363677184a(14) =6584401920a(15) =31792332800a(16) =153506906112a(17) =741197021184

External references