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%I #6 Jul 16 2021 21:31:38
%S 7746,8020,33294317,66705682,98000200,340465755424,476452552744,
%T 523547447255,659534244575,866013200680,998000002000,3695104677080133,
%U 3755782995538767,4198081170077530,4803478892324965,5196521107675034
%N Numbers k such that k*(k+2) gives the concatenation of two numbers m and m+7.
%e 98000200 * 98000202 = 96040393//96040400, where // denotes concatenation.
%Y Cf. A115429, A116315, A116336, A116344.
%K nonn,base
%O 1,1
%A _Giovanni Resta_, Feb 06 2006
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