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Numbers of the form (5^i)*(12^j), with i, j >= 0.
3

%I #5 Nov 21 2013 12:48:42

%S 1,5,12,25,60,125,144,300,625,720,1500,1728,3125,3600,7500,8640,15625,

%T 18000,20736,37500,43200,78125,90000,103680,187500,216000,248832,

%U 390625,450000,518400,937500,1080000,1244160,1953125,2250000,2592000

%N Numbers of the form (5^i)*(12^j), with i, j >= 0.

%t Take[Union[5^First[#] 12^Last[#]&/@Tuples[Range[0,20],2]],50] (* _Harvey P. Dale_, Mar 23 2012 *)

%Y Cf. A025622, A003595, A025623, A025624, A025625, A003598, A107466, A064476.

%K nonn

%O 1,2

%A Douglas Winston (douglas.winston(AT)srupc.com), Jun 15 2005