Number of palindromic paths starting with 1 through the subset array of {1,2,...,n}; see Comments.
A208655
Number of palindromic paths starting with 1 through the subset array of {1,2,...,n}; see Comments.
Terms
- a(0) =1a(1) =1a(2) =6a(3) =36a(4) =2400a(5) =90000a(6) =55566000a(7) =13553164800
External references
- oeis: A208655