G.f.: Product_{n>=1} (1 - Lucas(n)*x^n + (-x^2)^n) / (1 + Lucas(n)*x^n + (-x^2)^n) where Lucas(n) = A000204(n).
A203850
G.f.: Product_{n>=1} (1 - Lucas(n)*x^n + (-x^2)^n) / (1 + Lucas(n)*x^n + (-x^2)^n) where Lucas(n) = A000204(n).
Terms
- a(0) =1a(1) =-2a(2) =-4a(3) =0a(4) =14a(5) =16a(6) =0a(7) =0a(8) =4a(9) =-152a(10) =-188a(11) =0a(12) =0a(13) =-44a(14) =0a(15) =0a(16) =4414a(17) =5456a(18) =-4a(19) =0a(20) =1288a(21) =0a(22) =0a(23) =0a(24) =0a(25) =-335406a(26) =-414728a(27) =0a(28) =0a(29) =-97904
External references
- oeis: A203850