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%I #9 Jul 18 2021 02:54:53
%S 6,96,450,545,688,853,996,4379,5616,9996,72727,99996,346530,653465,
%T 999996,9090905,9999996,94117643,99999996,334665330,336032384,
%U 378253325,390977439,439928488,483516483,516483512,560071507
%N Numbers k such that k*(k+6) gives the concatenation of two numbers m and m-5.
%Y Cf. A116125, A116242, A116255, A116257, A116262.
%K nonn,base
%O 1,1
%A _Giovanni Resta_, Feb 06 2006
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