STATUS
reviewed
approved
The OEIS is supported by the many generous donors to the OEIS Foundation.
Revision History for A021719
(Bold, blue-underlined text is an addition; faded, red-underlined text is aShowing entries 1-10 | older changes
STATUS
proposed
reviewed
STATUS
editing
proposed
EXAMPLE
0.0013986013986013986013986013986013986...
STATUS
proposed
editing
STATUS
editing
proposed
STATUS
editing
proposed
LINKS
<a href="/index/Rec#order_04">Index entries for linear recurrences with constant coefficients</a>, signature (1,0,-1,1).
FORMULA
From Chai Wah Wu, Apr 22 2024: (Start)
a(n) = a(n-1) - a(n-3) + a(n-4) for n > 4.
G.f.: x^2*(-6*x^2 - 2*x - 1)/(x^4 - x^3 + x - 1). (End)
STATUS
approved
editing
STATUS
editing
approved
MATHEMATICA
Join[{0, 0}, RealDigits[1/715, 10, 120][[1]]] (* or *) PadRight[{0}, 120, {6, 0, 1, 3, 9, 8}] (* Harvey P. Dale, Nov 01 2019 *)
STATUS
approved
editing