Number of preferential arrangements for the set partitions of the n-set [1,2,3,...,n].

A083355

Number of preferential arrangements for the set partitions of the n-set [1,2,3,...,n].

Terms

    a(0) =1a(1) =1a(2) =4a(3) =23a(4) =175a(5) =1662a(6) =18937a(7) =251729a(8) =3824282a(9) =65361237a(10) =1241218963a(11) =25928015368a(12) =590852003947

External references