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A154882 a(n) = smallest number with at least as many divisors as (a(n-1))^2 0

%I

%S 2,4,12,120,7560,8648640,1927522396800,4747472432036420486400,

%T 128438082648984172330026178330296384000,

%U 6184173455628205993842062057864303743050691444602955105860128640000

%N a(n) = smallest number with at least as many divisors as (a(n-1))^2

%F a(n)=A061799(A048691(a(n-1))). [From _R. J. Mathar_, Jan 21 2009]

%e 4^2 = 16 with 5 divisors; smallest number with at least 5 divisors is 12

%K nonn

%O 1,1

%A _J. Lowell_, Jan 16 2009

%E a(6)-a(10) from _Donovan Johnson_, May 09 2009

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Last modified February 24 13:05 EST 2020. Contains 332209 sequences. (Running on oeis4.)