%I A134301
%S A134301 0,2,6,2,0,0,2,6,2,0,0,2,6,2,0,0,2,6,2,0,0,2,6,2,0,0,2,6,2,0,0,2,6,2,0,
%T A134301 0,2,6,2,0,0,2,6,2,0,0,2,6,2,0,0,2,6,2,0,0,2,6,2,0,0,2,6,2,0
%N A134301 Periodic sequence (0, 2, 6, 2, 0).
%C A134301 Also: twice the partial sums of A117444. - R. J. Mathar (mathar(AT)strw.leidenuniv.nl), 
               Feb 01 2008
%D A134301 Rozsa Peter, Leon Harkleroad, Mathematics is Beautiful, Math. Intellig., 
               12 (No. 1, 1990), 58-64.
%F A134301 a(n) = n(n+1) mod 10
%F A134301 O.g.f.: -2/(x-1)+(2*x^3+2*x^2-2*x-2)/(1+x+x^2+x^3+x^4). a(n)=a(n-5). 
               - R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Feb 01 2008
%F A134301 a(n)=(1/5)*{(n mod 5)+3*[(n+1) mod 5]+5*[(n+2) mod 5]-3*[(n+3) mod 5]-[(n+4) 
               mod 5]}, with n>=0 - Paolo P. Lava (ppl(AT)spl.at), Feb 05 2008
%Y A134301 Sequence in context: A132181 A027642 A117214 this_sequence A004544 A010590 
               A049061
%Y A134301 Adjacent sequences: A134298 A134299 A134300 this_sequence A134302 A134303 
               A134304
%K A134301 nonn
%O A134301 0,2
%A A134301 Franz Vrabec (franz.vrabec(AT)aon.at), Jan 30 2008