Number of compositions of n where there are (2*k)!/2 sorts of part k.

A370379

Number of compositions of n where there are (2*k)!/2 sorts of part k.

Terms

    a(0) =1a(1) =1a(2) =13a(3) =385a(4) =21061a(5) =1864921a(6) =243833533a(7) =44133789745

External references