a(n) = mu(n) * Catalan(n).

Terms

a(0) =1a(1) =1a(2) =-2a(3) =-5a(4) =0a(5) =-42a(6) =132a(7) =-429a(8) =0a(9) =0a(10) =16796a(11) =-58786a(12) =0a(13) =-742900a(14) =2674440a(15) =9694845a(16) =0a(17) =-129644790a(18) =0a(19) =-1767263190a(20) =0a(21) =24466267020a(22) =91482563640a(23) =-343059613650a(24) =0a(25) =0a(27) =0a(28) =0a(32) =0