Number of set partitions of {1,...,n} with largest set of size 3.
A229245
Number of set partitions of {1,...,n} with largest set of size 3.
Terms
- a(0) =1a(1) =4a(2) =20a(3) =90a(4) =420a(5) =2016a(6) =10024a(7) =51640a(8) =276980a(9) =1540440a(10) =8899176a(11) =53313624a(12) =330835960a(13) =2124646720a(14) =14102514560a(15) =96622736256a(16) =682608577104
External references
- oeis: A229245