From a Fibonacci-like differential equation.

Terms

a(0) =0a(1) =1a(2) =1a(3) =8a(4) =16a(5) =224a(6) =608a(7) =13320a(8) =41760a(9) =1366152a(10) =4440312a(11) =215100192a(12) =655723440a(13) =48242081328a(14) =121651212720