%I A051020
%S A051020 1253094867,1267085493,1268547309,1269085473,1273085469,1308547269,
%T A051020 1308549267,1326854907,1327068549,1328746905,1450687329,1450732869,
%U A051020 1450867293,1450928673,1452687309,1452690873,1452730869,1453087269
%N A051020 4-persistent numbers.
%H A051020 Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/
               PersistentNumber.html">Link to a section of The World of Mathematics.</
               a>
%Y A051020 Sequence in context: A104953 A154769 A104966 this_sequence A100004 A113641 
               A068746
%Y A051020 Adjacent sequences: A051017 A051018 A051019 this_sequence A051021 A051022 
               A051023
%K A051020 nonn
%O A051020 1,1
%A A051020 Eric Weisstein (eric(AT)weisstein.com)