Triangle by rows, generated from the odd integers and related to A000165.

Terms

a(0) =1a(1) =1a(2) =1a(3) =4a(4) =3a(5) =1a(6) =24a(7) =18a(8) =5a(9) =1a(10) =192a(11) =144a(12) =40a(13) =7a(14) =1a(15) =1920a(16) =1440a(17) =400a(18) =70a(19) =9a(20) =1a(21) =23040a(22) =17280a(23) =4800a(24) =840a(25) =108a(26) =11a(27) =1a(28) =322560a(29) =241920