A021143 Decimal expansion of 1/139.

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

Offset

0,3

Links

Vincenzo Librandi, Table of n, a(n) for n = 0..1000

Formula

From Chai Wah Wu, Jun 20 2016: (Start)

a(n) = a(n-1) - a(n-23) + a(n-24) for n > 23.

G.f.: x^2*(x^21 + 3*x^20 + 3*x^19 - 4*x^18 - x^17 + x^16 + 2*x^15 - x^14 - x^13 + 5*x^12 - 2*x^11 - x^10 + 4*x^9 - 6*x^8 + 2*x^7 + 2*x^5 - 2*x^4 - 5*x^3 + 8*x^2 - 6*x + 7)/(1 - x + x^23 - x^24). (End)

Mathematica

PadLeft[First@#, Abs@Last@# + Length@First@#] &@ RealDigits[N[1/139, 120]] (* Bruno Berselli, Jun 21 2016 *)

Crossrefs

Sequence in context: A117493 A177515 A196825 * A153870 A176437 A199463

Adjacent sequences: A021140 A021141 A021142 * A021144 A021145 A021146

Keyword

nonn,cons,easy

Author

N. J. A. Sloane.

Status

approved