Shifts left under Weigh transform.

Terms

a(0) =-1a(1) =-1a(2) =0a(3) =0a(4) =1a(5) =0a(6) =-1a(7) =-1a(8) =1a(9) =2a(10) =0a(11) =-3a(12) =-3a(13) =2a(14) =8a(15) =4a(16) =-10a(17) =-18a(18) =1a(19) =36a(20) =33a(21) =-36a(22) =-102a(23) =-33a(24) =170a(25) =238a(26) =-95a(27) =-578a(28) =-401a(29) =762