The OEIS is supported by the many generous donors to the OEIS Foundation.
%I #6 Jul 20 2021 23:44:31
%S 5,7403,8885,12563,41675,54239,2353623,2650793,7717533,527390351115,
%T 567933643889,627121279653,671264212463,1335723019653517755,
%U 2049430589972661489,2995303155542192885,4026214090447622723
%N Numbers k such that k concatenated with k-3 gives the product of two numbers which differ by 9.
%e 7717533//7717530 = 8784945 * 8784954, where // denotes concatenation.
%Y Cf. A116133, A116139, A116147, A116271.
%K nonn,base
%O 1,1
%A _Giovanni Resta_, Feb 06 2006