a(n) is the number of ordered partitions of {1, 1, 1, 1, 2, 3, ..., n-3}.
A172111
a(n) is the number of ordered partitions of {1, 1, 1, 1, 2, 3, ..., n-3}.
Terms
- a(0) =0a(1) =0a(2) =0a(3) =8a(4) =48a(5) =368a(6) =3408a(7) =36848a(8) =454608a(9) =6294128a(10) =96556368a(11) =1624775408a(12) =29744591568a(13) =588384837488
External references
- oeis: A172111