Number of indecomposable permutations avoiding the pattern 1324.

A284718

Number of indecomposable permutations avoiding the pattern 1324.

Terms

    a(0) =1a(1) =1a(2) =1a(3) =3a(4) =13a(5) =69a(6) =396a(7) =2355a(8) =14363a(9) =89706a(10) =573828a(11) =3758866a(12) =25195016a(13) =172591294a(14) =1206482317a(15) =8592827996a(16) =62257890162a(17) =458214977642

External references