Jabotinsky-triangle related to A039647.

Terms

a(0) =1a(1) =3a(2) =1a(3) =8a(4) =9a(5) =1a(6) =42a(7) =59a(8) =18a(9) =1a(10) =264a(11) =450a(12) =215a(13) =30a(14) =1a(15) =2160a(16) =4114a(17) =2475a(18) =565a(19) =45a(20) =1a(21) =20880a(22) =43512a(23) =30814a(24) =9345a(25) =1225a(26) =63a(27) =1a(28) =236880a(29) =528492