Eight white kings and one red king on a 3 X 3 chessboard. G.f.: (1 + 3*x)/(1 - 3*x - 7*x^2).
A179603
Eight white kings and one red king on a 3 X 3 chessboard. G.f.: (1 + 3*x)/(1 - 3*x - 7*x^2).
Terms
- a(0) =1a(1) =6a(2) =25a(3) =117a(4) =526a(5) =2397a(6) =10873a(7) =49398a(8) =224305a(9) =1018701a(10) =4626238a(11) =21009621a(12) =95412529a(13) =433304934a(14) =1967802505a(15) =8936542053a(16) =40584243694a(17) =184308525453a(18) =837015282217
External references
- oeis: A179603