A simple grammar: pairs of cycles of cycles.
A052822
A simple grammar: pairs of cycles of cycles.
Terms
- a(0) =0a(1) =0a(2) =2a(3) =12a(4) =80a(5) =630a(6) =5816a(7) =61978a(8) =751222a(9) =10225140a(10) =154610048a(11) =2573280820a(12) =46775427860a(13) =922374085984
External references
- oeis: A052822