a(n) is the number of ways of putting n labeled balls into 3 indistinguishable boxes such that each box contains at least 3 balls.
A272982
a(n) is the number of ways of putting n labeled balls into 3 indistinguishable boxes such that each box contains at least 3 balls.
Terms
- a(0) =280a(1) =2100a(2) =10395a(3) =42735a(4) =158301a(5) =549549a(6) =1827826a(7) =5903898a(8) =18682014a(9) =58257810a(10) =179765973a(11) =550478241a(12) =1676305723a(13) =5083927299a(14) =15372843684a(15) =46383762084a(16) =139730030100a(17) =420448298400
External references
- oeis: A272982