Number of non-isomorphic aperiodic multiset partitions of weight n whose dual is also an aperiodic multiset partition.

A320802

Number of non-isomorphic aperiodic multiset partitions of weight n whose dual is also an aperiodic multiset partition.

Terms

    a(0) =1a(1) =1a(2) =2a(3) =8a(4) =26a(5) =89a(6) =274a(7) =908a(8) =2955a(9) =9926a(10) =34021a(11) =119367a(12) =428612a(13) =1574222a(14) =5914324a(15) =22699632a(16) =88997058a(17) =356058538a(18) =1453059643a(19) =6044132792a(20) =25612530061a(21) =110503625785a(22) =485161109305

External references