Number of preferential arrangements of n labeled elements with repetitions allowed.
A213048
Number of preferential arrangements of n labeled elements with repetitions allowed.
Terms
- a(0) =1a(1) =1a(2) =5a(3) =31a(4) =229a(5) =1981a(6) =19775a(7) =224589a(8) =2864901a(9) =40591255a(10) =632760105a(11) =10765616885a(12) =198543617119
External references
- oeis: A213048