A simple context-free grammar in a labeled universe: labeled version of A052710.
A052725
A simple context-free grammar in a labeled universe: labeled version of A052710.
Terms
- a(0) =0a(1) =0a(2) =0a(3) =0a(4) =24a(5) =480a(6) =10080a(7) =262080a(8) =8104320a(9) =287400960a(10) =11496038400a(11) =512691379200
External references
- oeis: A052725