Number of permutations of {1,2,...,n} containing exactly 3 occurrences of the 132 pattern.
A082971
Number of permutations of {1,2,...,n} containing exactly 3 occurrences of the 132 pattern.
Terms
- a(0) =1a(1) =14a(2) =82a(3) =410a(4) =1918a(5) =8657a(6) =38225a(7) =166322a(8) =716170a(9) =3059864a(10) =12994936a(11) =54924212a(12) =231235054a(13) =970347575a(14) =4060697955a(15) =16952812170a(16) =70629116910a(17) =293720506860
External references
- oeis: A082971