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LCM of the first n numbers of the form p^q, where p and q are 1 or prime.
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%I #4 Mar 31 2012 23:01:22

%S 1,2,6,12,60,420,840,2520,27720,360360,6126120,116396280,2677114440,

%T 13385572200,40156716600,1164544781400,36100888223400,144403552893600,

%U 5342931457063200,219060189739591200,9419588158802421600

%N LCM of the first n numbers of the form p^q, where p and q are 1 or prime.

%C Is the sum of the series 1/a(n) transcendental?

%e a(11) = 6126120 = 1*2*3*2*5*7*2*3*11*13*17.

%Y Cf. A051451.

%K easy,nonn

%O 1,2

%A _Russell Easterly_, Feb 26 2004

%E Edited and extended by _David Wasserman_, Mar 13 2006