A simple grammar: rooted sequences of cycles.
A052860
A simple grammar: rooted sequences of cycles.
Terms
- a(0) =0a(1) =1a(2) =2a(3) =9a(4) =56a(5) =440a(6) =4164a(7) =46046a(8) =582336a(9) =8288136a(10) =131090880a(11) =2280970032a(12) =43298796672a(13) =890441326320
External references
- oeis: A052860