a(n) = 2*a(n-1) + 14*a(n-2) for n>1, a(0)=1, a(1)=1.

Terms

a(0) =1a(1) =1a(2) =16a(3) =46a(4) =316a(5) =1276a(6) =6976a(7) =31816a(8) =161296a(9) =768016a(10) =3794176a(11) =18340576a(12) =89799616a(13) =436367296a(14) =2129929216a(15) =10369000576a(16) =50557010176a(17) =246280028416