Number of ordered set partitions of [n] where the maximal block size equals four.

A320760

Number of ordered set partitions of [n] where the maximal block size equals four.

Terms

    a(0) =1a(1) =10a(2) =120a(3) =1540a(4) =21490a(5) =326970a(6) =5402250a(7) =96500250a(8) =1855334250a(9) =38228190000a(10) =840776937000

External references