Sequence shifts left eight places under Weigh transform with a(n) = signum(n) for n<8.

Terms

a(0) =0a(1) =1a(2) =1a(3) =1a(4) =1a(5) =1a(6) =1a(7) =1a(8) =1a(9) =1a(10) =1a(11) =2a(12) =2a(13) =3a(14) =4a(15) =5a(16) =6a(17) =8a(18) =10a(19) =13a(20) =17a(21) =22a(22) =30a(23) =40a(24) =53a(25) =71a(26) =96a(27) =128a(28) =173a(29) =233