%I A053839
%S A053839 0,1,2,3,1,2,3,0,2,3,0,1,3,0,1,2,1,2,3,0,2,3,0,1,3,0,1,2,0,1,2,3,2,3,0,
%T A053839 1,3,0,1,2,0,1,2,3,1,2,3,0,3,0,1,2,0,1,2,3,1,2,3,0,2,3,0,1,1,2,3,0,2,3,
%U A053839 0,1,3,0,1,2,0,1,2,3,2,3,0,1,3,0,1,2,0,1,2,3,1,2,3,0,3,0,1,2,0,1,2,3,1
%N A053839 (Sum of digits of n written in base 4) modulo 4.
%Y A053839 Cf. A010060.
%Y A053839 Sequence in context: A121884 A079087 A159956 this_sequence A047896 A073645 
               A082846
%Y A053839 Adjacent sequences: A053836 A053837 A053838 this_sequence A053840 A053841 
               A053842
%K A053839 base,nonn
%O A053839 0,3
%A A053839 Henry Bottomley (se16(AT)btinternet.com), Mar 28 2000