Difference between (n!)^2 and the next smaller factorial.

A121348

Difference between (n!)^2 and the next smaller factorial.

Terms

    a(0) =1a(1) =12a(2) =456a(3) =9360a(4) =155520a(5) =21772800a(6) =1146700800a(7) =44503603200

External references