a(n) is the unique n-digit number with all digits odd that is divisible by 5^n.

A151752

a(n) is the unique n-digit number with all digits odd that is divisible by 5^n.

Terms

    a(0) =5a(1) =75a(2) =375a(3) =9375a(4) =59375a(5) =359375a(6) =3359375a(7) =93359375a(8) =193359375a(9) =3193359375a(10) =73193359375a(11) =773193359375

External references