OFFSET
1,1
COMMENTS
Sequence of denominators: 9, 33, 333, 9999, 33333, 333333, 9999999, 11111111, 111111111, 99999999999, 3333333333333, ... Conjecture: this sequence is not equal to the sequence A172498.
LINKS
Alois P. Heinz, Table of n, a(n) for n = 1..368
EXAMPLE
a(10) = 1012345678900; 1012345678900 / 99999999999 = 10.1234567891012345678910... (repeating 12345678910).
MAPLE
a:= n-> (m-> numer(n+m*sum(10^(-i*length(m)), i=1..infinity))
)(parse(cat(seq(i, i=1..n)))):
seq(a(n), n=1..19); # Alois P. Heinz, Mar 31 2022
CROSSREFS
KEYWORD
nonn,base,frac
AUTHOR
Jaroslav Krizek, Feb 05 2010
EXTENSIONS
More terms from Alois P. Heinz, Mar 31 2022
STATUS
approved