Search: id:A093152
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%I A093152
%S A093152 0,12,163,1881,20192,210678,2167602,22119050,224575958,2272470765,
%T A093152 22940965468,231196012323,2326967172345,23397529032871,235077714312816,
%U A093152 2360380827753871,23688221418030854,237630022854838725
%N A093152 Number of odd composites 3 mod 4 less than 10^n.
%F A093152 Count odd composites 3 mod 4 less than 10^n
%F A093152 For n>1, a(n) = 25*10^(n-2) - A091099(n) [From Max Alekseyev (maxale(AT)gmail.com), 
               May 17 2009]
%e A093152 Below 10^2 there are 12 odd composites 3 mod 4 so a(2)=12
%Y A093152 Cf. A093151 A093153 A091295 A091098 A091099.
%Y A093152 Sequence in context: A109391 A138455 A024221 this_sequence A143583 A046174 
               A055760
%Y A093152 Adjacent sequences: A093149 A093150 A093151 this_sequence A093153 A093154 
               A093155
%K A093152 easy,nonn
%O A093152 1,2
%A A093152 Enoch Haga (Enokh(AT)comcast.net), Mar 24 2004
%E A093152 a(9) from Ryan Propper (rpropper(AT)stanford.edu), Jun 21 2005
%E A093152 Extended by Max Alekseyev (maxale(AT)gmail.com), May 17 2009

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