Number of ways in which n identical balls can be distributed among 4 boxes in a row such that each pair of adjacent boxes contains at least 4 balls.

A005337

Number of ways in which n identical balls can be distributed among 4 boxes in a row such that each pair of adjacent boxes contains at least 4 balls.

Terms

    a(0) =15a(1) =40a(2) =76a(3) =124a(4) =185a(5) =260a(6) =350a(7) =456a(8) =579a(9) =720a(10) =880a(11) =1060a(12) =1261a(13) =1484a(14) =1730a(15) =2000a(16) =2295a(17) =2616a(18) =2964a(19) =3340a(20) =3745a(21) =4180a(22) =4646a(23) =5144a(24) =5675a(25) =6240a(26) =6840a(27) =7476a(28) =8149a(29) =8860

External references