A021647 Decimal expansion of 1/643.

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

Offset

0,4

Links

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

Example

0.0015552099533437013996889580093312597200622083981337...

Mathematica

First[RealDigits[1/643, 10, 100, -1]] (* Paolo Xausa, Aug 24 2025 *)

Crossrefs

Sequence in context: A172359 A379377 A093796 * A181668 A247824 A094851

Adjacent sequences: A021644 A021645 A021646 * A021648 A021649 A021650

Keyword

nonn,cons,easy

Author

N. J. A. Sloane

Status

approved