Defining sequence for an inverse Fredholm-Rueppel triangle.

Terms

a(0) =1a(1) =-1a(2) =1a(3) =-2a(4) =3a(5) =-4a(6) =6a(7) =-10a(8) =15a(9) =-22a(10) =34a(11) =-52a(12) =78a(13) =-118a(14) =180a(15) =-274a(16) =415a(17) =-630a(18) =958a(19) =-1454a(20) =2206a(21) =-3350a(22) =5088a(23) =-7724a(24) =11726a(25) =-17806a(26) =27036a(27) =-41046a(28) =62320a(29) =-94624