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%I #7 Jul 17 2021 01:44:50
%S 464,535,717,821,3427,6572,90906,980201,3636360,6363639,41176467,
%T 58823532,413533837,426573429,428571425,432620008,567379991,571428574,
%U 573426570,586466162,686261110,725274728,727272724,731321307
%N Numbers k such that k*(k+2) gives the concatenation of two numbers m and m+8.
%Y Cf. A115430, A116335, A116343, A116345.
%K nonn,base
%O 1,1
%A _Giovanni Resta_, Feb 06 2006
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