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%I #6 Jul 20 2021 23:47:32
%S 1122070,1538990,3692998,4422608,1661985831086046580,
%T 3508493742205242178,5949206094811297768,11324756194731856386028,
%U 44020205992737767475178,55147546334394567747178
%N Numbers k such that k concatenated with k+2 gives the product of two numbers which differ by 9.
%e 4422608//4422610 = 6650265 * 6650274, where // denotes
%e concatenation.
%Y Cf. A116169, A116174, A116182, A116306.
%K nonn,base
%O 1,1
%A _Giovanni Resta_, Feb 06 2006
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