Largest n-digit number m such that m and m^10 are zeroless.

A124654

Largest n-digit number m such that m and m^10 are zeroless.

Terms

    a(0) =7a(1) =92a(2) =992a(3) =9924a(4) =99556a(5) =999572a(6) =9998693a(7) =99996927a(8) =999985976a(9) =9999957996a(10) =99999789966a(11) =999999779234

External references