On a 3 X 3 board, number of n-move routes of chess king ending in a given side square.

A086347

On a 3 X 3 board, number of n-move routes of chess king ending in a given side square.

Terms

    a(0) =1a(1) =5a(2) =24a(3) =116a(4) =560a(5) =2704a(6) =13056a(7) =63040a(8) =304384a(9) =1469696a(10) =7096320a(11) =34264064a(12) =165441536a(13) =798822400a(14) =3857055744a(15) =18623512576a(16) =89922273280a(17) =434183143424

External references