

A172507


a(n) = numerator of fraction a/b, where gcd(a, b) = 1, whose decimal representation has the form (n).(n).


0



11, 11, 33, 22, 11, 33, 77, 44, 99, 101, 1111, 303, 1313, 707, 303, 404, 1717, 909, 1919, 101, 2121, 1111, 2323, 606, 101, 1313, 2727, 707, 2929, 303
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OFFSET

1,1


COMMENTS

Sequence of denominators: 10, 25, 1000, 5000, 20000, 15625, 10000000, 50000000, ... Conjecture: this sequence is not equal to the sequence A078267.


LINKS



EXAMPLE

a(6) = 33; 33/5 = 6.6.


CROSSREFS



KEYWORD

nonn


AUTHOR



STATUS

approved



