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A116139 Numbers k such that k concatenated with k-3 gives the product of two numbers which differ by 8. 5

%I #6 Jul 20 2021 23:44:24

%S 43,20440836,30017751,61336887,52400871197755334426147587,

%T 53651708763838760619655612,56652002793835820319625612,

%U 57952296063256269823192087,17684775866714240650923831481623

%N Numbers k such that k concatenated with k-3 gives the product of two numbers which differ by 8.

%e 61336887//61336884 = 78317866 * 78317874, where // denotes concatenation.

%Y Cf. A116126, A116205, A116140, A116146, A116270.

%K nonn,base

%O 1,1

%A _Giovanni Resta_, Feb 06 2006

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Last modified March 28 12:59 EDT 2024. Contains 371254 sequences. (Running on oeis4.)