Smallest Catalan number (A000108) divisible by n.

Terms

a(0) =1a(1) =2a(2) =42a(3) =132a(4) =5a(5) =42a(6) =14a(7) =2674440a(8) =2674440a(9) =1430a(10) =132a(11) =132a(12) =429a(13) =14a(14) =2674440a(16) =4862a(17) =2674440a(18) =16796a(19) =742900a(20) =42a(21) =132a(22) =208012a(23) =2674440a(24) =742900a(25) =1430a(27) =208012a(28) =9694845a(29) =2674440a(30) =35357670a(32) =132