A transform of the Fibonacci numbers.

Terms

a(0) =0a(1) =1a(2) =1a(3) =0a(4) =-2a(5) =-5a(6) =-8a(7) =-8a(8) =0a(9) =21a(10) =55a(11) =89a(12) =89a(13) =0a(14) =-233a(15) =-610a(16) =-987a(17) =-987a(18) =0a(19) =2584a(20) =6765a(21) =10946a(22) =10946a(23) =0a(24) =-28657a(25) =-75025a(26) =-121393a(27) =-121393a(28) =0a(29) =317811