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A116239 Numbers k such that k*(k+8) gives the concatenation of two numbers m and m-8. 4

%I

%S 7743,8017,33294314,66705679,98000197,340465755421,476452552741,

%T 523547447252,659534244572,866013200677,998000001997,3695104677080130,

%U 3755782995538764,4198081170077527,4803478892324962,5196521107675031

%N Numbers k such that k*(k+8) gives the concatenation of two numbers m and m-8.

%e 98000197 * 98000205 = 96040393//96040385, where // denotes concatenation.

%Y Cf. A115429, A116238, A116240, A116244.

%K nonn,base

%O 1,1

%A _Giovanni Resta_, Feb 06 2006

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Last modified September 27 13:17 EDT 2021. Contains 347688 sequences. (Running on oeis4.)