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A109362 Period 6. 0

%I

%S 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,

%T 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,

%U 1,2,0,3,0,0,1,2,0,3,0,0,1,2

%N Period 6.

%F G.f. x^2*(1+2*x+3*x^3)/((x-1)*(x+1)*(x^2+x+1)*(x^2-x+1))

%F a(n)=1/30*{17*(n mod 6)-13[(n+1) mod 6]+12*[(n+2) mod 6]-3*[(n+3) mod 6]-3*[(n+4) mod 6]+2*[(n+5) mod 6]} with n>=0 - _Paolo P. Lava_, Nov 27 2006

%o 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)

%K easy,nonn

%O 0,4

%A _Creighton Dement_, Aug 22 2005

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Last modified March 20 21:49 EDT 2019. Contains 321352 sequences. (Running on oeis4.)