a(n) = 3*a(n-1) - 8*a(n-2), with a(0)=0, a(1)=1.

Terms

a(0) =0a(1) =1a(2) =3a(3) =1a(4) =-21a(5) =-71a(6) =-45a(7) =433a(8) =1659a(9) =1513a(10) =-8733a(11) =-38303a(12) =-45045a(13) =171289a(14) =874227a(15) =1252369a(16) =-3236709a(17) =-19729079a(18) =-33293565a(19) =57951937a(20) =440204331a(21) =856997497a(22) =-950642157a(23) =-9707906447a(24) =-21518582085a(25) =13107505321a(26) =211471172643a(27) =529553475361a(28) =-103108955061