On a 3 X 3 board, number of n-move routes of chess king ending in the central square.
A086348
On a 3 X 3 board, number of n-move routes of chess king ending in the central square.
Terms
- a(0) =1a(1) =8a(2) =32a(3) =168a(4) =784a(5) =3840a(6) =18432a(7) =89216a(8) =430336a(9) =2078720a(10) =10035200a(11) =48457728a(12) =233967616a(13) =1129709568a(14) =5454692352a(15) =26337640448a(16) =127169265664a(17) =614027755520
External references
- oeis: A086348