%I A119210
%S A119210 6,66,666,476776,764466,4646676,464774774646,
%T A119210 667474767766464747666467446,7666777767444444644744476476,
%U A119210 44774674766666676747766477446
%N A119210 Triangular numbers composed of digits {4,6,7}.
%C A119210 Next entry must be greater than 10^32.
%H A119210 G. Resta, <a href="http://www.iit.cnr.it/staff/giovanni.resta/tritri.txt">
               Tridigital Triangular Numbers</a>
%Y A119210 Cf. A000217, A053957, A119211. See A119033 for a table of cross-references.
%Y A119210 Sequence in context: A036523 A112902 A119160 this_sequence A119234 A119232 
               A131519
%Y A119210 Adjacent sequences: A119207 A119208 A119209 this_sequence A119211 A119212 
               A119213
%K A119210 nonn,base,more
%O A119210 1,1
%A A119210 Giovanni Resta (g.resta(AT)iit.cnr.it), May 10 2006