a(n) = 2*a(n-1) - 3*a(n-2) + 2*a(n-3) with a(0) = 1, a(1) = 5, a(2) = 6.

Terms

a(0) =1a(1) =5a(2) =6a(3) =-1a(4) =-10a(5) =-5a(6) =18a(7) =31a(8) =-2a(9) =-61a(10) =-54a(11) =71a(12) =182a(13) =43a(14) =-318a(15) =-401a(16) =238a(17) =1043a(18) =570a(19) =-1513a(20) =-2650a(21) =379a(22) =5682a(23) =4927a(24) =-6434a(25) =-16285a(26) =-3414a(27) =29159a(28) =35990a(29) =-22325