Number of 132-segmented permutations of length n.

Terms

a(0) =1a(1) =1a(2) =2a(3) =6a(4) =18a(5) =57a(6) =190a(7) =654a(8) =2306a(9) =8290a(10) =30272a(11) =111973a(12) =418666a(13) =1579803a(14) =6008464a(15) =23009240a(16) =88645034a(17) =343334976a(18) =1336105472a(19) =5221667740a(20) =20485272152a(21) =80645855014a(22) =318489386884