A055866 Largest number that has the same number of digits in base 10 and base n, or 0 if no such number exists.

1, 2, 15, 124, 1295, 117648, 1073741823, 109418989131512359208, 0, 9999999999999999999999999, 9999999999999, 999999999, 9999999, 999999, 99999, 99999, 9999, 9999, 9999, 9999, 999, 999, 999, 999, 999, 999, 999, 999, 999

Offset: 2

Author

Jud McCranie, May 13 2000

Keywords

• base
• nonn

Comments

a(10)=infinity, a(22)-a(31)=999, a(32-99)=99, a(n)=9 for n >= 100.

Examples

			117648 is "666666" in base 7, larger numbers have more base 7 digits than base 10 digits.