Number of permutations of length n with exactly 7 occurrences of the pattern 2-13.

A120815

Number of permutations of length n with exactly 7 occurrences of the pattern 2-13.

Terms

    a(0) =42a(1) =1664a(2) =33338a(3) =468200a(4) =5253864a(5) =50442128a(6) =431645370a(7) =3380738400a(8) =24682378500a(9) =170201240352

External references