A161494 - OEIS

%I #11 Mar 29 2017 20:29:40

%S 1,2,3,4,8,10,12,14,15,18,21,22,24,25,26,30,32,33,36,39,42,44,45,46,

%T 48,51,56,57,58,62,64,65,66,69,70,75,76,78,80,81,82,86,87,93,94,96,99,

%U 102,104,108,111,114,115,116,118,119,122,123,124,129,130,132,133,134,135

%N The square roots of the terms of A161493.

%H Ivan Neretin, <a href="/A161494/b161494.txt">Table of n, a(n) for n = 1..10000</a>

%F a(n) = A000196(A161493(n)).

%t Select[Range[150], OddQ@Quotient[#^2, DivisorSigma[0, #^2]] &] (* _Ivan Neretin_, Mar 23 2017 *)

%Y Cf. A000196, A161493.

%K nonn

%O 1,2

%A _John W. Layman_, Jun 12 2009