Number of integers whose arithmetic derivative (A003415) is equal to n!, the n-th factorial.

A376410

Number of integers whose arithmetic derivative (A003415) is equal to n!, the n-th factorial.

Terms

    a(0) =0a(1) =1a(2) =4a(3) =13a(4) =40a(5) =186a(6) =952a(7) =5533a(8) =38719a(9) =346207a(10) =3130816a(11) =34444968a(12) =382437431a(13) =4637235152

External references