A simple grammar: product of cycles and cycles of cycles.
A052826
A simple grammar: product of cycles and cycles of cycles.
Terms
- a(0) =0a(1) =0a(2) =2a(3) =9a(4) =48a(5) =315a(6) =2497a(7) =23394a(8) =254132a(9) =3149826a(10) =43945354a(11) =682314028a(12) =11676044036a(13) =218402171520
External references
- oeis: A052826