a(1) = 1. a(n) = n times (10's complement of a(n-1)).

A110395

a(1) = 1. a(n) = n times (10's complement of a(n-1)).

Terms

    a(0) =1a(1) =18a(2) =246a(3) =3016a(4) =34920a(5) =390480a(6) =4266640a(7) =45866880a(8) =487198080a(9) =5128019200a(10) =53591788800a(11) =556898534400

External references