Number of generalized weak orders on n points.
A004123
Number of generalized weak orders on n points.
Terms
- a(0) =1a(1) =2a(2) =10a(3) =74a(4) =730a(5) =9002a(6) =133210a(7) =2299754a(8) =45375130a(9) =1007179562a(10) =24840104410a(11) =673895590634
External references
- oeis: A004123