Number of arrangements of n indistinguishable balls in n boxes with the maximum number of balls in any box equal to 4.

A180284

Number of arrangements of n indistinguishable balls in n boxes with the maximum number of balls in any box equal to 4.

Terms

    a(0) =4a(1) =20a(2) =90a(3) =392a(4) =1652a(5) =6804a(6) =27600a(7) =110715a(8) =440374a(9) =1740024a(10) =6838832a(11) =26762645a(12) =104356980a(13) =405706292a(14) =1573256772a(15) =6087597150a(16) =23511579564a(17) =90659983064a(18) =349090305487

External references