A simple grammar: number of cycles of cycles.
A052809
A simple grammar: number of cycles of cycles.
Terms
- a(0) =0a(1) =0a(2) =2a(3) =6a(4) =28a(5) =175a(6) =1368a(7) =12838a(8) =140656a(9) =1762794a(10) =24878320a(11) =390495336a(12) =6748280064a(13) =127324033824
External references
- oeis: A052809