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A338714 Number of numbers of the form i*n with 1 <= i <= n and tau(i*n) = 6. 2

%I

%S 0,0,0,1,1,2,1,1,3,2,2,1,2,2,2,1,2,1,2,1,2,2,2,0,8,2,1,1,3,0,3,1,2,2,

%T 2,0,3,2,2,0,3,0,3,1,1,2,3,0,14,1,2,1,4,0,2,0,2,2,4,0,4,2,1,0,2,0,4,1,

%U 2,0,4,0,4,2,1,1,2,0,4,0,1,2,4,0,2,2,2,0,4,0,2,1,2,2,2

%N Number of numbers of the form i*n with 1 <= i <= n and tau(i*n) = 6.

%H Seiichi Manyama, <a href="/A338714/b338714.txt">Table of n, a(n) for n = 1..10000</a>

%o (PARI) a(n) = sum(i=1, n, numdiv(i*n)==6); \\ _Michel Marcus_, Nov 11 2020

%Y tau is A000005.

%Y For tau(i*n) = 2, 3, 4, see A010051, A296084, A338713.

%Y Inspired by A333995.

%K nonn

%O 1,6

%A _N. J. A. Sloane_, Nov 11 2020

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Last modified July 28 23:26 EDT 2021. Contains 346340 sequences. (Running on oeis4.)