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A109362 Period 6: repeat [0, 0, 1, 2, 0, 3]. 0
0, 0, 1, 2, 0, 3, 0, 0, 1, 2, 0, 3, 0, 0, 1, 2, 0, 3, 0, 0, 1, 2, 0, 3, 0, 0, 1, 2, 0, 3, 0, 0, 1, 2, 0, 3, 0, 0, 1, 2, 0, 3, 0, 0, 1, 2, 0, 3, 0, 0, 1, 2, 0, 3, 0, 0, 1, 2, 0, 3, 0, 0, 1, 2, 0, 3, 0, 0, 1, 2, 0, 3, 0, 0, 1, 2, 0, 3, 0, 0, 1, 2 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,4
COMMENTS
Floretion Algebra Multiplication Program, FAMP Code: 1em[I]sumseq[ - .25'i - .5'j - .25i' - .5j' + .25'ii' + .25'jj' - .75'kk' + .25'jk' + .25'kj' + .25e]; sumtype: (Y[15], *, sum)
LINKS
FORMULA
G.f.: x^2*(1 + 2*x + 3*x^3)/((1 - x)*(x + 1)*(x^2 + x + 1)*(x^2 - x + 1)). [corrected by Georg Fischer, May 15 2019]
a(n) = (3 - cos(n*Pi/3) - 2*cos(n*Pi) - sqrt(3)*sin(n*Pi/3) - 2*sqrt(3)*sin(2*n*Pi/3)) / 3. - Wesley Ivan Hurt, Apr 26 2020
MATHEMATICA
PadRight[{}, 100, {0, 0, 1, 2, 0, 3}] (* or *)
LinearRecurrence[{0, 0, 0, 0, 0, 1}, {0, 0, 1, 2, 0, 3}, 100] (* Georg Fischer, May 15 2019 *)
PROG
(PARI) a(n)=[0, 0, 1, 2, 0, 3][n%6+1]; \\ Georg Fischer, May 15 2019
CROSSREFS
Sequence in context: A261727 A234579 A309332 * A085246 A268726 A035182
KEYWORD
nonn,easy
AUTHOR
Creighton Dement, Aug 22 2005
STATUS
approved

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Last modified March 29 04:59 EDT 2024. Contains 371264 sequences. (Running on oeis4.)