a(n) = 2*a(n-1) - 3*a(n-2) + 2*a(n-3) with a(0) = 3, a(1) = 4, a(2) = 0.

Terms

a(0) =3a(1) =4a(2) =0a(3) =-6a(4) =-4a(5) =10a(6) =20a(7) =2a(8) =-36a(9) =-38a(10) =36a(11) =114a(12) =44a(13) =-182a(14) =-268a(15) =98a(16) =636a(17) =442a(18) =-828a(19) =-1710a(20) =-52a(21) =3370a(22) =3476a(23) =-3262a(24) =-10212a(25) =-3686a(26) =16740a(27) =24114a(28) =-9364a(29) =-57590