Number of free tree-like 4d-polycubes of size n.

A304198

Number of free tree-like 4d-polycubes of size n.

Terms

    a(0) =1a(1) =1a(2) =2a(3) =6a(4) =24a(5) =122a(6) =838a(7) =6759a(8) =61600a(9) =600875a(10) =6139448

External references