Transform of the finite sequence (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) =141a(7) =328a(8) =763a(9) =1774a(10) =4124a(11) =9587a(12) =22287a(13) =51811a(14) =120446a(15) =280003a(16) =650928a(17) =1513224a(18) =3517819a(19) =8177937a(20) =19011397a(21) =44196136a(22) =102743551a(23) =238849778a(24) =555258368a(25) =1290819099a(26) =3000790339a(27) =6975991187a(28) =16217211982a(29) =37700443911