Number of set partitions of [2n] with maximal block length multiplicity equal to n.

A271425

Number of set partitions of [2n] with maximal block length multiplicity equal to n.

Terms

    a(0) =1a(1) =1a(2) =9a(3) =35a(4) =385a(5) =3717a(6) =48279a(7) =691119a(8) =11229075a(9) =200982925a(10) =3928974907a(11) =83060120871

External references