login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 56th year, we are closing in on 350,000 sequences, and we’ve crossed 9,700 citations (which often say “discovered thanks to the OEIS”).

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A033141 Base-5 digits are, in order, the first n terms of the periodic sequence with initial period 1,0,0. 0
1, 5, 25, 126, 630, 3150, 15751, 78755, 393775, 1968876, 9844380, 49221900, 246109501, 1230547505, 6152737525, 30763687626, 153818438130, 769092190650, 3845460953251, 19227304766255, 96136523831275, 480682619156376 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..22.

Index entries for linear recurrences with constant coefficients, signature (5,0,1,-5).

FORMULA

a(n) = +5*a(n-1) +a(n-3) -5*a(n-4). G.f.: x / ( (x-1)*(5*x-1)*(1+x+x^2) ). - R. J. Mathar, Jan 08 2011

MATHEMATICA

Table[FromDigits[PadRight[{}, n, {1, 0, 0}], 5], {n, 30}] (* or *) LinearRecurrence[ {5, 0, 1, -5}, {1, 5, 25, 126}, 30] (* Harvey P. Dale, May 09 2018 *)

CROSSREFS

Sequence in context: A030988 A173260 A080516 * A099524 A081916 A307879

Adjacent sequences:  A033138 A033139 A033140 * A033142 A033143 A033144

KEYWORD

nonn,base,easy

AUTHOR

Clark Kimberling

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified December 7 20:40 EST 2021. Contains 349589 sequences. (Running on oeis4.)