Floor of the expected value of number of trials until exactly three cells are empty in a random distribution of n balls in n cells.

A210114

Floor of the expected value of number of trials until exactly three cells are empty in a random distribution of n balls in n cells.

Terms

    a(0) =64a(1) =10a(2) =4a(3) =2a(4) =2a(5) =2a(6) =2a(7) =3a(8) =5a(9) =7a(10) =11a(11) =18a(12) =31a(13) =55a(14) =100a(15) =185a(16) =348a(17) =670a(18) =1311a(19) =2606a(20) =5254a(21) =10734a(22) =22196a(23) =46407a(24) =98023a(25) =209009a(26) =449580a(27) =974963a(28) =2130442a(29) =4688533

External references