Number of n-strand braids of length at most 3 in the dual monoid B_n^{+*}.
A248383
Number of n-strand braids of length at most 3 in the dual monoid B_n^{+*}.
Terms
- a(0) =1a(1) =5a(2) =177a(3) =2856a(4) =147855a(5) =9845829
External references
- oeis: A248383