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%I #6 Jul 21 2021 22:46:05
%S 40,54999166056446260156057520,57975463942945155043148110,
%T 71745828111009107426351428,75139610610667830220414750,
%U 1640418113875534941913761115401064
%N Numbers k such that k concatenated with k-8 gives the product of two numbers which differ by 1.
%e 40//32 = 63 * 64, where // denotes concatenation.
%Y Cf. A116094, A116102, A116115, A116232.
%K nonn,base
%O 1,1
%A _Giovanni Resta_, Feb 06 2006
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