Total number of permutations on {1,2,...,n} that have a unique longest increasing subsequence.
A167995
Total number of permutations on {1,2,...,n} that have a unique longest increasing subsequence.
Terms
- a(0) =1a(1) =1a(2) =3a(3) =10a(4) =44a(5) =238a(6) =1506a(7) =10960a(8) =90449a(9) =834166a(10) =8496388a(11) =94738095a(12) =1148207875a(13) =15031585103a(14) =211388932628
External references
- oeis: A167995