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A020697 Number of divisors of A019505(n). 2

%I

%S 1,2,3,4,6,8,10,12,16,20,24,30,36,48,60,72,84,96,120,144,168,192,224,

%T 256,320,384,448,512,576,672,768,896,1024,1152,1344,1536,1792,2048,

%U 2304,2688,3072,3456,4032,4608,5376,6144,6912,8064,9216,10368,11520,12960

%N Number of divisors of A019505(n).

%C Conjecture: all numbers of the form 3*2^n are in this sequence. - _J. Lowell_, Mar 12 2008 [This is false: 3*2^12 = 12288 is the smallest counterexample. - _Klaus Brockhaus_, Jul 24 2008]

%K nonn

%O 1,2

%A _J. Lowell_, May 11 2007, corrected Mar 20 2008

%E More terms from _Klaus Brockhaus_, Jul 24 2008

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Last modified September 28 05:33 EDT 2020. Contains 337392 sequences. (Running on oeis4.)