Total sum of the lengths of the first runs in heapable permutations of length n.
A389488
Total sum of the lengths of the first runs in heapable permutations of length n.
Terms
- a(0) =1a(1) =2a(2) =5a(3) =14a(4) =50a(5) =215a(6) =1109a(7) =6671a(8) =46073a(9) =359674a(10) =3136435a(11) =30242591a(12) =319737694a(13) =3679836643a(14) =45817548623a(15) =613853225509
External references
- oeis: A389488