Eight white kings and one red king on a 3 X 3 chessboard. G.f.: (1 + 2*x)/(1 - 3*x - 8*x^2).
A179598
Eight white kings and one red king on a 3 X 3 chessboard. G.f.: (1 + 2*x)/(1 - 3*x - 8*x^2).
Terms
- a(0) =1a(1) =5a(2) =23a(3) =109a(4) =511a(5) =2405a(6) =11303a(7) =53149a(8) =249871a(9) =1174805a(10) =5523383a(11) =25968589a(12) =122092831a(13) =574027205a(14) =2698824263a(15) =12688690429a(16) =59656665391a(17) =280479519605
External references
- oeis: A179598