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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A037660 Base 4 digits are, in order, the first n terms of the periodic sequence with initial period 3,1,0. 0
3, 13, 52, 211, 845, 3380, 13523, 54093, 216372, 865491, 3461965, 13847860, 55391443, 221565773, 886263092, 3545052371, 14180209485, 56720837940, 226883351763, 907533407053, 3630133628212, 14520534512851, 58082138051405 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..23.

Index entries for linear recurrences with constant coefficients, signature (4,0,1,-4).

FORMULA

G.f.: x*(3+x) / ( (x-1)*(4*x-1)*(1+x+x^2) ). - R. J. Mathar, Apr 30 2015

CROSSREFS

Sequence in context: A086608 A291182 A037772 * A122600 A063682 A082376

Adjacent sequences:  A037657 A037658 A037659 * A037661 A037662 A037663

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 April 22 18:24 EDT 2021. Contains 343177 sequences. (Running on oeis4.)