(n!)!, n>0 (note that A000197 is the correct version of this sequence, with a(0) = 1, not 0).

A036298

(n!)!, n>0 (note that A000197 is the correct version of this sequence, with a(0) = 1, not 0).

Terms

    a(0) =0a(1) =1a(2) =2a(3) =720

External references