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A035034 n >= d(n)^2, d() = number of divisors. 4

%I

%S 1,5,7,9,11,13,17,19,21,22,23,25,26,27,29,31,33,34,35,37,38,39,41,43,

%T 44,45,46,47,49,50,51,52,53,55,57,58,59,61,62,63,64,65,66,67,68,69,70,

%U 71,73,74,75,76,77,78,79,81

%N n >= d(n)^2, d() = number of divisors.

%H Harvey P. Dale, <a href="/A035034/b035034.txt">Table of n, a(n) for n = 1..10000</a>

%t Select[Range[100],#>=DivisorSigma[0,#]^2&] (* _Harvey P. Dale_, May 05 2017 *)

%Y Cf. A034884, A035033-A035035.

%K nonn

%O 1,2

%A _N. J. A. Sloane_.

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Last modified February 28 01:15 EST 2020. Contains 332319 sequences. (Running on oeis4.)