a(n) = (n+10)!/10!.

A051431

a(n) = (n+10)!/10!.

Terms

    a(0) =1a(1) =11a(2) =132a(3) =1716a(4) =24024a(5) =360360a(6) =5765760a(7) =98017920a(8) =1764322560a(9) =33522128640a(10) =670442572800

External references