A021459 Decimal expansion of 1/455.

0, 0, 2, 1, 9, 7, 8, 0, 2, 1, 9, 7, 8, 0, 2, 1, 9, 7, 8, 0, 2, 1, 9, 7, 8, 0, 2, 1, 9, 7, 8, 0, 2, 1, 9, 7, 8, 0, 2, 1, 9, 7, 8, 0, 2, 1, 9, 7, 8, 0, 2, 1, 9, 7, 8, 0, 2, 1, 9, 7, 8, 0, 2, 1, 9, 7, 8, 0, 2, 1, 9, 7, 8, 0, 2, 1, 9, 7, 8, 0, 2, 1, 9, 7, 8, 0, 2, 1, 9, 7, 8, 0, 2, 1, 9, 7, 8, 0, 2

Offset

0,3

Links

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

Index entries for periodic sequences, period 6.

Index entries for linear recurrences with constant coefficients, signature (1, 0, -1, 1).

Example

0.00219780219780219780219780219780219780219780219780219780219780219780219780....

Mathematica

Join[{0, 0}, RealDigits[1/455, 10, 120][[1]]] (* Harvey P. Dale, Aug 19 2011 *)

Prog

(PARI) a(n)=if(n, 791208\10^(n%6)%10, 0) \\ Charles R Greathouse IV, Jun 01 2026
(PARI) 1/455. \\ Charles R Greathouse IV, Jun 01 2026

Crossrefs

Sequence in context: A316606 A016632 A176400 * A385805 A133169 A133175

Adjacent sequences: A021456 A021457 A021458 * A021460 A021461 A021462

Keyword

nonn,cons,easy

Author

N. J. A. Sloane

Status

approved