OFFSET
1,1
COMMENTS
The length of the period is the number of digits of a(n): 1, 1, 3, 9, 27, 81, ... The terms a(n) are more precisely the integers made from the digits of a period, starting with the first nonzero digit. - M. F. Hasler, Apr 23 2021
FORMULA
a(n) = floor(10^(3^max(n-2,0)+L(3^n))/3^n) where L(m) = floor(log10(m)). - M. F. Hasler, Apr 23 2021
EXAMPLE
1/3^3 = 0.0370370370..., hence a(3) = 370.
PROG
(PARI) apply( {A068542(n)=10^(3^max(n-2, 0)+logint(3^n, 10))\3^n}, [1..6]) \\ M. F. Hasler, Apr 23 2021
CROSSREFS
KEYWORD
nonn
AUTHOR
Benoit Cloitre, Mar 22 2002
STATUS
approved