%I #6 Jul 20 2021 23:45:51
%S 5,95,216,287,515,675,995,1175,4320,9995,82640,99995,960795,999995,
%T 1322312,4049591,9999995,16955015,34602080,99999995,171010235,
%U 181964891,183673467,187160072,321920055,326530616,328818032
%N Numbers k such that k concatenated with itself gives the product of two numbers which differ by 6.
%Y Cf. A115429, A116158, A116160, A116173, A116290.
%K nonn,base
%O 1,1
%A _Giovanni Resta_, Feb 06 2006