Matchings avoiding the pattern 132.

Terms

a(0) =1a(1) =1a(2) =3a(3) =14a(4) =84a(5) =595a(6) =4750a(7) =41541a(8) =390566a(9) =3895957a(10) =40835749a(11) =446475634a(12) =5063092427a(13) =59282989982a(14) =714081785678