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%I #9 Jul 18 2021 02:47:59
%S 69,79822842,69852478553064869297984899963804,
%T 77473062193002372448027740546436,77747359197583788609974143907616,
%U 84341826458653210947638195982112,85367942837521291760016984490248
%N Numbers k such that k*(k+7) gives the concatenation of two numbers m and m-8.
%e 79822842 * 79822849 = 63716866//63716858, where // denotes concatenation.
%Y Cf. A116107, A116230, A116237, A116239, A116243.
%K nonn,base
%O 1,1
%A _Giovanni Resta_, Feb 06 2006
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