a(n) = 2a(n-1)-2a(n-2), with a(0)=3 and a(1)=2.

Terms

a(0) =3a(1) =2a(2) =-2a(3) =-8a(4) =-12a(5) =-8a(6) =8a(7) =32a(8) =48a(9) =32a(10) =-32a(11) =-128a(12) =-192a(13) =-128a(14) =128a(15) =512a(16) =768a(17) =512a(18) =-512a(19) =-2048a(20) =-3072a(21) =-2048a(22) =2048a(23) =8192a(24) =12288a(25) =8192a(26) =-8192a(27) =-32768a(28) =-49152a(29) =-32768