Imaginary parts of the recursive sequence a(n+2) = Sum_{k=0..n} binomial(n,k)*a(k)*a(n+1-k), with a(0)=2, a(1)=i.
A289085
Imaginary parts of the recursive sequence a(n+2) = Sum_{k=0..n} binomial(n,k)*a(k)*a(n+1-k), with a(0)=2, a(1)=i.
Terms
- a(0) =0a(1) =1a(2) =2a(3) =4a(4) =8a(5) =12a(6) =-36a(7) =-656a(8) =-6016a(9) =-45712a(10) =-303584a(11) =-1614784a(12) =-3151424a(13) =89449152a(14) =2020752864a(15) =30106674944a(16) =371094759424
External references
- oeis: A289085