Number of self-inverse permutations in S_n with longest increasing subsequence of length 9.

A217321

Number of self-inverse permutations in S_n with longest increasing subsequence of length 9.

Terms

    a(0) =1a(1) =9a(2) =89a(3) =639a(4) =4655a(5) =30330a(6) =198148a(7) =1233743a(8) =7694099a(9) =46938514a(10) =287070944a(11) =1738940782a(12) =10570927022a(13) =64059763010a(14) =389873574058

External references