Number of self-inverse permutations in S_n with longest increasing subsequence of length 6.
A217326
Number of self-inverse permutations in S_n with longest increasing subsequence of length 6.
Terms
- a(0) =1a(1) =6a(2) =41a(3) =209a(4) =1106a(5) =5323a(6) =26069a(7) =122901a(8) =585922a(9) =2747977a(10) =13000269a(11) =61088173a(12) =289186846a(13) =1366147708a(14) =6496681304a(15) =30905464864a(16) =147912712795a(17) =709073550307
External references
- oeis: A217326