OFFSET
0,3
COMMENTS
See A007732, which is the main entry for this sequence.
FORMULA
EXAMPLE
The first unit fraction considered is 1/3 because both 1/1 and 1/2 have finite decimal expansions.
a(1) = 1 because 1/3=.33333... whose repeating portion, 3, is of length 1.
Note: 1/4 and 1/5 are skipped because their decimal expansions are finite.
a(2) = 1 because 1/6=.166666... whose repeating portion, 6, is of length 1.
a(3) = 6 because 1/7 =.142857142857... whose repeating portion, 142857, is of length 6.
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Gil Broussard, Aug 11 2006
STATUS
approved