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%I #9 Jul 18 2021 02:49:03
%S 7,63,42752,57240,75422,425071,574921,979527,4301392,5698600,7028665,
%T 4925000746,5074999246,7748266573,8511881483,8814851183,7059602159671,
%U 7106167933827,7439286611620,7485852385776,46791112884924
%N Numbers k such that k*(k+9) gives the concatenation of two numbers m and m-9.
%Y Cf. A116193, A116230, A116240.
%K nonn,base
%O 1,1
%A _Giovanni Resta_, Feb 06 2006
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