a(n+8)+34*a(n+4)+a(n)=0 with a(0)-a(7) as shown.

Terms

a(0) =2a(1) =2a(2) =-5a(3) =-29a(4) =-70a(5) =-70a(6) =169a(7) =985a(8) =2378a(9) =2378a(10) =-5741a(11) =-33461a(12) =-80782a(13) =-80782a(14) =195025a(15) =1136689a(16) =2744210a(17) =2744210a(18) =-6625109a(19) =-38613965a(20) =-93222358a(21) =-93222358a(22) =225058681a(23) =1311738121a(24) =3166815962a(25) =3166815962a(26) =-7645370045a(27) =-44560482149a(28) =-107578520350a(29) =-107578520350