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!)
A109430 Period 24. 0
0, -1, -5, -4, 2, 1, 1, -6, 0, 3, 3, 0, -2, 1, 5, 2, -4, -1, -1, 4, -2, -3, -3, -2, 0, -1, -5, -4, 2, 1, 1, -6, 0, 3, 3, 0, -2, 1, 5, 2, -4, -1, -1, 4, -2, -3, -3, -2, 0, -1, -5, -4, 2, 1, 1, -6, 0, 3, 3, 0, -2, 1, 5, 2, -4, -1, -1, 4, -2, -3, -3, -2, 0, -1, -5, -4, 2, 1, 1, -6, 0, 3, 3, 0, -2, 1, 5, 2, -4, -1 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Table of n, a(n) for n=0..89.

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

FORMULA

G.f.: x*(1 + 4*x - 2*x^3 - 6*x^5 + 8*x^6 - 6*x^7 + 4*x^8 - 6*x^9 + 2*x^11 + x^12 + 2*x^13)/((x - 1)*(x^2 + 1)*(x^4 + 1)*(x^8 - x^4 + 1)).

MATHEMATICA

LinearRecurrence[{1, -1, 1, 0, 0, 0, 0, 0, 0, 0, 0, -1, 1, -1, 1}, {0, -1, -5, -4, 2, 1, 1, -6, 0, 3, 3, 0, -2, 1, 5}, 100] (* Jinyuan Wang, Feb 28 2020 *)

PROG

Floretion Algebra Multiplication Program, FAMP Code: 2tessumseq[ + .5'k + .5i' + .5j' + .5'kk'], sumtype: (Y[15], *, sum)

CROSSREFS

Sequence in context: A224228 A286680 A201680 * A085917 A180130 A242600

Adjacent sequences:  A109427 A109428 A109429 * A109431 A109432 A109433

KEYWORD

easy,sign

AUTHOR

Creighton Dement, Aug 26 2005

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 1 08:36 EDT 2020. Contains 333159 sequences. (Running on oeis4.)