a(n) = product of the first n integers from among those positive integers which are coprime to n.

A123279

a(n) = product of the first n integers from among those positive integers which are coprime to n.

Terms

    a(0) =1a(1) =3a(2) =8a(3) =105a(4) =144a(5) =85085a(6) =5760a(7) =2027025a(8) =3203200a(9) =4216455243a(10) =43545600a(12) =6706022400

External references