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!)
A037656 Base 7 digits are, in order, the first n terms of the periodic sequence with initial period 3,0,2. 0
3, 21, 149, 1046, 7322, 51256, 358795, 2511565, 17580957, 123066702, 861466914, 6030268400, 42211878803, 295483151621, 2068382061349, 14478674429446, 101350721006122, 709455047042856, 4966185329299995 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..19.

Index entries for linear recurrences with constant coefficients, signature (7,0,1,-7)

FORMULA

G.f.: x*(3+2*x^2) / ( (x-1)*(7*x-1)*(1+x+x^2) ). - R. J. Mathar, Apr 30 2015

MATHEMATICA

Table[FromDigits[PadRight[{}, n, {3, 0, 2}], 7], {n, 20}] (* Harvey P. Dale, Jul 27 2019 *)

CROSSREFS

Sequence in context: A037761 A037649 A037768 * A074577 A007566 A183412

Adjacent sequences:  A037653 A037654 A037655 * A037657 A037658 A037659

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 9 06:35 EST 2021. Contains 349627 sequences. (Running on oeis4.)