A sequence B(2,n) arising from the enumeration of braids.
A263628
A sequence B(2,n) arising from the enumeration of braids.
Terms
- a(0) =15a(1) =90a(2) =511a(3) =2943a(4) =16985a(5) =98013
External references
- oeis: A263628
A263628
A sequence B(2,n) arising from the enumeration of braids.