login
This site is supported by donations to The OEIS Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A047560 Numbers that are congruent to {0, 2, 3, 6, 7} mod 8. 1
0, 2, 3, 6, 7, 8, 10, 11, 14, 15, 16, 18, 19, 22, 23, 24, 26, 27, 30, 31, 32, 34, 35, 38, 39, 40, 42, 43, 46, 47, 48, 50, 51, 54, 55, 56, 58, 59, 62, 63, 64, 66, 67, 70, 71, 72, 74, 75, 78, 79, 80, 82, 83, 86, 87, 88 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

G. C. Greubel, Table of n, a(n) for n = 1..1000

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

FORMULA

From Chai Wah Wu, May 29 2016: (Start)

a(n) = a(n-1) + a(n-5) - a(n-6) for n>6.

G.f.: x^2*(x^4 + x^3 + 3*x^2 + x + 2)/(x^6 - x^5 - x + 1). (End)

MATHEMATICA

Select[Range[0, 90], MemberQ[{0, 2, 3, 6, 7}, Mod[#, 8]]&] (* Harvey P. Dale, Nov 17 2011 *)

LinearRecurrence[{1, 0, 0, 0, 1, -1}, {0, 2, 3, 6, 7, 8}, 50] (* G. C. Greubel, May 29 2016 *)

PROG

(MAGMA) [n : n in [0..150] | n mod 8 in [0, 2, 3, 6, 7]]; // Wesley Ivan Hurt, May 29 2016

CROSSREFS

Sequence in context: A299407 A028757 A184798 * A032899 A193528 A232681

Adjacent sequences:  A047557 A047558 A047559 * A047561 A047562 A047563

KEYWORD

nonn,easy

AUTHOR

N. J. A. Sloane

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 February 19 12:53 EST 2019. Contains 320310 sequences. (Running on oeis4.)