a(n) = Jacobsthal(n) * Fibonacci(n).

Terms

a(0) =0a(1) =1a(2) =1a(3) =6a(4) =15a(5) =55a(6) =168a(7) =559a(8) =1785a(9) =5814a(10) =18755a(11) =60787a(12) =196560a(13) =636323a(14) =2058797a(15) =6663030a(16) =21561015a(17) =69774527a(18) =225792504a(19) =730684103a(20) =2364536625a(21) =7651812246a(22) =24761766811a(23) =80130789371a(24) =259308635040a(25) =839140445275