%I A070431
%S A070431 0,1,4,3,4,1,0,1,4,3,4,1,0,1,4,3,4,1,0,1,4,3,4,1,0,1,4,3,4,1,0,1,4,3,4,
%T A070431 1,0,1,4,3,4,1,0,1,4,3,4,1,0,1,4,3,4,1,0,1,4,3,4,1,0,1,4,3,4,1,0,1,4,3,
%U A070431 4,1,0,1,4,3,4,1,0,1,4,3,4,1,0,1,4,3,4,1,0,1,4,3,4,1,0,1,4,3,4
%N A070431 n^2 mod 6.
%C A070431 a(m*n)=a(m)*a(n) mod 6; a(3*n+k)=a(3*n-k) for k<=3*n; a(n+6)=a(n). [From 
               Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Apr 24 2009]
%C A070431 Equivalently n^6 mod 6. [From Zerinvary Lajos (zerinvarylajos(AT)yahoo.com), 
               Nov 06 2009]
%F A070431 G.f.: -x*(1+4*x+3*x^2+4*x^3+x^4)/((x-1)*(1+x)*(1+x+x^2)*(x^2-x+1)). [From 
               R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Jul 23 2009]
%o A070431 (Other) sage: [power_mod(n,2,6)for n in xrange(0, 101)] # [From Zerinvary 
               Lajos (zerinvarylajos(AT)yahoo.com), Oct 30 2009]
%o A070431 (Other) sage: [power_mod(n,6,6)for n in xrange(0, 101)] # [From Zerinvary 
               Lajos (zerinvarylajos(AT)yahoo.com), Nov 06 2009]
%Y A070431 A008959, A070435, A070438, A070442, A070452, A159852, A000290. [From 
               Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Apr 24 2009]
%Y A070431 Sequence in context: A007568 A091884 A048156 this_sequence A070511 A066340 
               A143505
%Y A070431 Adjacent sequences: A070428 A070429 A070430 this_sequence A070432 A070433 
               A070434
%K A070431 nonn,new
%O A070431 0,3
%A A070431 N. J. A. Sloane (njas(AT)research.att.com), May 12 2002