A021444 Decimal expansion of 1/440.

0, 0, 2, 2, 7, 2, 7, 2, 7, 2, 7, 2, 7, 2, 7, 2, 7, 2, 7, 2, 7, 2, 7, 2, 7, 2, 7, 2, 7, 2, 7, 2, 7, 2, 7, 2, 7, 2, 7, 2, 7, 2, 7, 2, 7, 2, 7, 2, 7, 2, 7, 2, 7, 2, 7, 2, 7, 2, 7, 2, 7, 2, 7, 2, 7, 2, 7, 2, 7, 2, 7, 2, 7, 2, 7, 2, 7, 2, 7, 2, 7, 2, 7, 2, 7, 2, 7, 2, 7, 2, 7, 2, 7, 2, 7, 2, 7, 2, 7

Offset

0,3

Links

Antti Karttunen, Table of n, a(n) for n = 0..1001

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

Example

0.002272727272727272727272727272727272727272727272727...

Mathematica

First[RealDigits[1/440, 10, 100, -1]] (* or *)
PadRight[{0, 0, 2}, 100, {7, 2}] (* Paolo Xausa, Aug 14 2025 *)

Prog

(PARI) 1/440. \\ Charles R Greathouse IV, Jul 13 2016
(Scheme) (define (A021444 n) (cond ((<= n 1) 0) ((= 2 n) n) ((even? n) 7) (else 2))) ;; Antti Karttunen, Sep 14 2017

Crossrefs

Cf. A010697.

Sequence in context: A383795 A082837 A138115 * A394085 A029632 A089588

Adjacent sequences: A021441 A021442 A021443 * A021445 A021446 A021447

Keyword

nonn,cons,easy

Author

N. J. A. Sloane

Status

approved