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

2,2

Comments

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

Links

Table of n, a(n) for n=2..30.

Example

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

Crossrefs

Sequence in context: A085228 A365157 A341726 * A364978 A051407 A371580

Adjacent sequences: A055863 A055864 A055865 * A055867 A055868 A055869

Keyword

base,nonn

Author

Jud McCranie, May 13 2000

Status

approved