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A116109 Numbers k such that k concatenated with k-8 gives the product of two numbers which differ by 9. 4

%I #6 Jul 21 2021 22:46:53

%S 94,210,294,994,5880,9994,52888,99994,127044,414180,999994,8264470,

%T 9999994,12456750,41868508,99999994,112670544,441341880,468144040,

%U 669421494,702338994,715976338,750005718,960645294,999999994

%N Numbers k such that k concatenated with k-8 gives the product of two numbers which differ by 9.

%e 8505429358//8505429350 = 9222488466 * 9222488475, where // denotes concatenation.

%Y Cf. A116193, A115429, A116114, A116240.

%K nonn,base

%O 1,1

%A _Giovanni Resta_, Feb 06 2006

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Last modified April 19 23:15 EDT 2024. Contains 371798 sequences. (Running on oeis4.)