Differences between factorials and Xfactorials: A048631 - A000142.

A048632

Differences between factorials and Xfactorials: A048631 - A000142.

Terms

    a(0) =0a(1) =0a(2) =0a(3) =0a(4) =0a(5) =0a(6) =448a(7) =3136a(8) =25088a(9) =238080a(10) =2780160a(11) =32409600a(12) =439263232a(13) =5793579008a(14) =84589174784

External references