Inverse of trinomial triangle A071675.

Terms

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