A066558 a(n) = A066557(n)/n.

9, 49, 333, 2499, 19999, 166666, 1428571, 12499999, 111111111, 999999999, 9090909090, 83333333333, 769230769230, 7142857142857, 66666666666666, 624999999999999, 5882352941176470, 55555555555555555, 526315789473684210

Offset

1,1

Links

Harry J. Smith, Table of n, a(n) for n = 1..150

Formula

a(n) = floor((10^n-1)/n).

Prog

(PARI) { for (n=1, 150, write("b066558.txt", n, " ", floor((10^n - 1)/n)) ) } \\ Harry J. Smith, Feb 22 2010

Crossrefs

Cf. A053041, A066557.

Sequence in context: A069665 A188235 A286810 * A168597 A169724 A135625

Adjacent sequences: A066555 A066556 A066557 * A066559 A066560 A066561

Keyword

nonn,base

Author

Amarnath Murthy, Dec 17 2001

Extensions

More terms and formula from Francisco Salinas (franciscodesalinas(AT)hotmail.com), Dec 24 2001

Status

approved