Transform of the finite sequence (1, 0, -1, 0, 1, 0, -1) by the T_{1,0} transformation (see link).

Terms

a(0) =1a(1) =2a(2) =4a(3) =11a(4) =27a(5) =61a(6) =140a(7) =327a(8) =761a(9) =1769a(10) =4112a(11) =9559a(12) =22222a(13) =51660a(14) =120095a(15) =279187a(16) =649031a(17) =1508814a(18) =3507567a(19) =8154104a(20) =18955992a(21) =44067335a(22) =102444125a(23) =238153697a(24) =553640176a(25) =1287057259a(26) =2992045122a(27) =6955661024a(28) =16169950087a(29) =37590573335