a(n) = A092287(n)/A129364(n).

Terms

a(0) =1a(1) =1a(2) =1a(3) =1a(4) =1a(5) =2a(6) =2a(7) =2a(8) =6a(9) =48a(10) =48a(11) =48a(12) =48a(13) =1536a(14) =207360a(15) =207360a(16) =207360a(17) =1105920a(18) =1105920a(19) =17694720a(20) =30098718720a(23) =481579499520