Total number of cycles in all heapable permutations of length n.
A388136
Total number of cycles in all heapable permutations of length n.
Terms
- a(0) =1a(1) =2a(2) =5a(3) =14a(4) =53a(5) =237a(6) =1268a(7) =7840a(8) =55520a(9) =442482a(10) =3929342a(11) =38494577a(12) =412788816a(13) =4811322660a(14) =60596283345a(15) =820364410622
External references
- oeis: A388136