Search: id:A011821
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%I A011821
%S A011821 2,7,64,877,10742,102050,753994,4486435,22285884,95264798,359074648,
%T A011821 1216716022,3763991016,10763615106,28741372964,72261453121,
%U A011821 172248589406,391536067037,852876877928,1787799809335,3619382778994
%N A011821 M-sequences m_0,...,m_5 with m_1 < n.
%C A011821 Apparently a polynomial of degree 15: n^15/32659200 etc., compare A011829, 
               (frank.ellermann(AT)t-online.de).
%D A011821 S. Linusson, The number of M-sequences and f-vectors, Combinatorica, 
               19 (1999), 255-266.
%Y A011821 Cf. A011819 ... A011825, A011829.
%Y A011821 Sequence in context: A153694 A100523 A006506 this_sequence A117263 A046855 
               A116985
%Y A011821 Adjacent sequences: A011818 A011819 A011820 this_sequence A011822 A011823 
               A011824
%K A011821 nonn
%O A011821 1,1
%A A011821 Svante Linusson (linusson(AT)math.kth.se)

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