A021427 Decimal expansion of 1/423.

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

Offset

0,3

Links

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

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

Formula

From Chai Wah Wu, Sep 04 2025: (Start)

a(n) = a(n-46) for n > 45.

G.f.: x^2*(-3*x^43 - x^42 - 5*x^41 - x^40 - 2*x^39 - 3*x^38 - 8*x^37 - 6*x^36 - 7*x^35 - 5*x^34 - 2*x^33 - 7*x^32 - x^31 - 9*x^30 - 4*x^29 - 4*x^28 - 7*x^26 - 4*x^25 - 7*x^24 - 8*x^23 - x^21 - 8*x^20 - 9*x^19 - 5*x^18 - 9*x^17 - 8*x^16 - 7*x^15 - 2*x^14 - 4*x^13 - 3*x^12 - 5*x^11 - 8*x^10 - 3*x^9 - 9*x^8 - x^7 - 6*x^6 - 6*x^5 - 4*x^3 - 6*x^2 - 3*x - 2)/(x^46 - 1). (End)

Example

0.0023640661938534278959810874704491725768321513002364...

Mathematica

First[RealDigits[1/423, 10, 100, -1]] (* Paolo Xausa, Aug 14 2025 *)

Crossrefs

Sequence in context: A101401 A106834 A191658 * A352478 A091834 A050210

Adjacent sequences: A021424 A021425 A021426 * A021428 A021429 A021430

Keyword

nonn,cons,easy

Author

N. J. A. Sloane

Status

approved