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%I #7 Jul 17 2021 01:45:03
%S 32,66,42755,57243,75425,425074,574924,979530,4301395,5698603,7028668,
%T 4925000749,5074999249,7748266576,8511881486,8814851186,7059602159674,
%U 7106167933830,7439286611623,7485852385779,46791112884927
%N Numbers k such that k*(k+3) gives the concatenation of two numbers m and m+9.
%Y Cf. A116193, A116336, A116348, A116350.
%K nonn,base
%O 1,1
%A _Giovanni Resta_, Feb 06 2006