Mirror of the triangle A193965.

Terms

a(0) =1a(1) =3a(2) =1a(3) =15a(4) =10a(5) =3a(6) =43a(7) =26a(8) =15a(9) =4a(10) =120a(11) =75a(12) =43a(13) =25a(14) =7a(15) =318a(16) =196a(17) =120a(18) =69a(19) =40a(20) =11a(21) =840a(22) =520a(23) =318a(24) =195a(25) =112a(26) =65a(27) =18a(28) =2203a(29) =1361