Eight white kings and one red king on a 3 X 3 chessboard. G.f.: (1 + x)/(1 - 2*x - 10*x^2 - 4*x^3).
A179600
Eight white kings and one red king on a 3 X 3 chessboard. G.f.: (1 + x)/(1 - 2*x - 10*x^2 - 4*x^3).
Terms
- a(0) =1a(1) =3a(2) =16a(3) =66a(4) =304a(5) =1332a(6) =5968a(7) =26472a(8) =117952a(9) =524496a(10) =2334400a(11) =10385568a(12) =46213120a(13) =205619520a(14) =914912512a(15) =4070872704a(16) =18113348608a(17) =80595074304a(18) =358607125504
External references
- oeis: A179600