A022001 Decimal expansion of 1/997.

0, 0, 1, 0, 0, 3, 0, 0, 9, 0, 2, 7, 0, 8, 1, 2, 4, 3, 7, 3, 1, 1, 9, 3, 5, 8, 0, 7, 4, 2, 2, 2, 6, 6, 8, 0, 0, 4, 0, 1, 2, 0, 3, 6, 1, 0, 8, 3, 2, 4, 9, 7, 4, 9, 2, 4, 7, 7, 4, 3, 2, 2, 9, 6, 8, 9, 0, 6, 7, 2, 0, 1, 6, 0, 4, 8, 1, 4, 4, 4, 3, 3, 2, 9, 9, 8, 9, 9, 6, 9, 9, 0, 9, 7, 2, 9, 1, 8, 7

Offset

0,6

Comments

Generalization:

1/7 = sum (3^i/10^(i+1)), i >= 0,

1/97 = sum (3^i/100^(i+1)), i >= 0,

1/997 = sum (3^i/1000^(i+1)), i >= 0, (this sequence)

1/9997 = sum (3^i/10000^(i+1)), i >= 0, ... - Daniel Forgues, Oct 28 2011

Links

Table of n, a(n) for n=0..98.

Mathematica

Join[{0, 0}, RealDigits[1/997, 10, 120][[1]]] (* Harvey P. Dale, Jul 28 2023 *)

Prog

(PARI) 1/997. \\ Charles R Greathouse IV, Apr 02 2014

Crossrefs

Sequence in context: A068606 A106153 A166244 * A265832 A343236 A363767

Adjacent sequences: A021998 A021999 A022000 * A022002 A022003 A022004

Keyword

nonn,cons,easy

Author

N. J. A. Sloane.

Status

approved