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Search: id:A039665
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%I A039665
%S A039665 242,243,244,245,3655,3656,3657,3658,4503,4504,4505,4506,5943,5944,
%T A039665 5945,5946,6853,6854,6855,6856,7256,7257,7258,7259,8392,8393,8394,8395,
%U A039665 9367,9368,9369,9370,10983,10984,10985,10986,11605,11606,11607,11608
%N A039665 Sets of 4 consecutive numbers with equal number of divisors.
%C A039665 Taking the first entry in each set gives A006601.
%D A039665 D. Wells, Curious and interesting numbers, Penguin Books, p. 134
%Y A039665 Cf. A000005, A005237, A005238, A006601, A049051, A006558, A019273.
%Y A039665 Sequence in context: A120377 A060110 A113468 this_sequence A023703 A094908 
               A070284
%Y A039665 Adjacent sequences: A039662 A039663 A039664 this_sequence A039666 A039667 
               A039668
%K A039665 nonn
%O A039665 1,1
%A A039665 Felice Russo (felice.russo(AT)katamail.com)
%E A039665 More terms from Patrick De Geest (pdg(AT)worldofnumbers.com), Nov 15 
               1999

    
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Last modified December 16 17:18 EST 2009. Contains 170825 sequences.


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