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%I #36 Aug 15 2020 21:37:55
%S 0,549504,1798848,4193856,4804128,5827584,7426944,14397696,34324992,
%T 39401250,39611040,42856128,45312750,62593440,81575424,86171040,
%U 92348928,140184576,151600896,196475328,221695488,251584704,263680704,271165104,287945280,475388928,499654656
%N Numbers that have at least 3 different representations as the product of a number and of its decimal digits.
%C Subsequence of A336944. a(2) and a(43) both have 4 representations. The term 1461825635235840 = 696266592*(6*9*6*2*6*6*5*9*2) = 72511192224*(7*2*5*1*1*1*9*2*2*2*4) = 5371199424*(5*3*7*1*1*9*9*4*2*4) = 7161599232*(7*1*6*1*5*9*9*2*3*2) = 1193599872*(1*1*9*3*5*9*9*8*7*2) has 5 representations.
%H Chai Wah Wu, <a href="/A337054/b337054.txt">Table of n, a(n) for n = 1..11157</a>
%e a(43) = 1578092544 = 342468*(3*4*2*4*6*8) = 913248*(9*1*3*2*4*8) = 97848*(9*7*8*4*8) = 86976*(8*6*9*7*6).
%Y Cf. A098736, A336826, A336876, A336944, A337051.
%K nonn,base
%O 1,2
%A _Chai Wah Wu_, Aug 12 2020