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A076940 Define a mapping for a reduced rational number p/q by f(p/q) = 1 followed by p zeros followed by a 1 followed by q zeros. 1
1010, 10100, 101000, 1001000, 10100000, 100100000, 1000100000, 1010000000, 10010000000, 100010000000, 10000010000000, 10100000000, 1010000, 1000100000000, 100000100000000, 10000000100000000 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

COMMENTS

(p,q) = 1, p = A066657(n) and q = A066658(n).

This gives another proof that rational numbers are countable.

FORMULA

a(n) = 10^(p+q+1)+ 10^q where p = A066657(n) and q = A066658(n)

CROSSREFS

Cf. A066657, A066658.

Sequence in context: A043640 A145808 A157010 * A173521 A055473 A035125

Adjacent sequences:  A076937 A076938 A076939 * A076941 A076942 A076943

KEYWORD

nonn

AUTHOR

Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Oct 19 2002

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Last modified February 17 13:24 EST 2012. Contains 206031 sequences.