%I A119981
%S A119981 1,1,1,1,1,1,1,0,1,1,1,1,1,1,0,1,0,1,1,0,1,1,1,0,1,1,0,1,0,0,1,1,1,1,1,
%T A119981 1,0,0,0,0,1,1,0,1,1,0,0,1,1,0,1,0,1,1,0,1,0,1,1,0,1,1,1,1,0,0,0,1,0,0,
%U A119981 0,0,0,1,1,0,1,0,1,0
%N A119981 a(n) = 1 iff number congruent to {2, 4} mod 6 is equal to prime minus 
               3, otherwise a(n)=0.
%C A119981 a(n) = 1 iff A047235(n) + 3 = A086801(n).
%Y A119981 Cf. A047235, A086801.
%Y A119981 Sequence in context: A129573 A118172 A118111 this_sequence A115789 A053864 
               A129667
%Y A119981 Adjacent sequences: A119978 A119979 A119980 this_sequence A119982 A119983 
               A119984
%K A119981 easy,nonn
%O A119981 1,1
%A A119981 Giovanni Teofilatto (g.teofilatto(AT)tiscalinet.it), Aug 03 2006