a(n+3) = 2a(n+2) - 3a(n+1) + 2a(n); a(0) = 1, a(1) = 1, a(2) = 0.

Terms

a(0) =1a(1) =1a(2) =0a(3) =-1a(4) =0a(5) =3a(6) =4a(7) =-1a(8) =-8a(9) =-5a(10) =12a(11) =23a(12) =0a(13) =-45a(14) =-44a(15) =47a(16) =136a(17) =43a(18) =-228a(19) =-313a(20) =144a(21) =771a(22) =484a(23) =-1057a(24) =-2024a(25) =91a(26) =4140a(27) =3959a(28) =-4320a(29) =-12237