A triangle related to A000045 (Fibonacci numbers).

Terms

a(0) =1a(1) =1a(2) =1a(3) =4a(4) =2a(5) =1a(6) =18a(7) =12a(8) =3a(9) =1a(10) =120a(11) =72a(12) =24a(13) =4a(14) =1a(15) =960a(16) =600a(17) =180a(18) =40a(19) =5a(20) =1a(21) =9360a(22) =5760a(23) =1800a(24) =360a(25) =60a(26) =6a(27) =1a(28) =105840a(29) =65520