a(n) = 6*a(n-1) + 8*a(n-2), with a(0)=0, a(1)=1.

Terms

a(0) =0a(1) =1a(2) =6a(3) =44a(4) =312a(5) =2224a(6) =15840a(7) =112832a(8) =803712a(9) =5724928a(10) =40779264a(11) =290475008a(12) =2069084160a(13) =14738305024a(14) =104982503424a(15) =747801460736