A242374 Number of digits in the decimal expansion of n^8.

1, 1, 3, 4, 5, 6, 7, 7, 8, 8, 9, 9, 9, 9, 10, 10, 10, 10, 11, 11, 11, 11, 11, 11, 12, 12, 12, 12, 12, 12, 12, 12, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15

Offset

0,3

Links

Table of n, a(n) for n=0..67.

Formula

a(n) = A055642(n^8) = A055642(A001016(n)).

Example

For n=1, a(1)=1 because 1^8=1, 1 digit.
For n=9, a(9)=8 because 9^8=43046721, 8 digits.

Prog

(PARI) a(n) = #Str(n^8); \\ Michel Marcus, May 12 2014

Crossrefs

Sequence in context: A168093 A095254 A262980 * A225179 A121857 A121854

Adjacent sequences: A242371 A242372 A242373 * A242375 A242376 A242377

Keyword

nonn,base,easy

Author

Michelle Tu, May 12 2014

Extensions

More terms from Michel Marcus, May 12 2014

Status

approved