Search: id:A114903
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%I A114903
%S A114903 2,4,12,76,572,5204,59340,782996,11707324,197988340,3720933092,
%T A114903 76811352116,1730660689580,42251140165108,1110607948991028,
%U A114903 31279537587370916,939737174809843644,29996522608581396788
%N A114903 Number of compositions of {1,..,n} such that no two adjacent parts are 
               of equal size (labeled Carlitz compositions), allowing parts to be 
               of size 0.
%F A114903 E.g.f.: 2*B(x)/(2-B(x)) where B(x) is e.g.f. of A114902.
%Y A114903 Cf. A114900, A114902.
%Y A114903 Sequence in context: A085864 A060935 A141522 this_sequence A038054 A003180 
               A002080
%Y A114903 Adjacent sequences: A114900 A114901 A114902 this_sequence A114904 A114905 
               A114906
%K A114903 nonn
%O A114903 0,1
%A A114903 Christian G. Bower (bowerc(AT)usa.net), Jan 05 2006

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