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%I #8 Jul 20 2021 23:44:50
%S 10,100,132,406,510,852,1000,7930,10000,66942,100000,113322,440056,
%T 1000000,5289256,10000000,58477510,100000000,111333222,164378892,
%U 183673470,200444410,206611570,224376732,277008310,297520662
%N Numbers k such that k concatenated with k-2 gives the product of two numbers which differ by 3.
%Y Cf. A116128, A054214, A115426, A116149, A116274.
%K nonn,base
%O 1,1
%A _Giovanni Resta_, Feb 06 2006