Search: id:A080387
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%I A080387
%S A080387 13,31,41,57,85,91,133,155,177,183,209,221,253,281,307,313,341,375,381,
%T A080387 409,419,441,457,463,477,481,533,553,599,617,625,631,645,651,661,691,
%U A080387 737,757,829,841,859,871,881,885,901,919,929,937,953,967,987,993
%N A080387 Numbers n such that the number of k for which the C[n,Floor(n/2)]/C[n,
               k] quotient is an integer equals ten; i.e. A080383(n)=10.
%e A080387 for n=13:the central binomial coefficient(=1716) is divisible by 10 C[13,
               k] b,coefficients; the 4 non-divisible cases are as follows: C[13,
               4],C[13,5],C[13,8],C[13,9].
%Y A080387 Cf. A001405, A080383-A080388.
%Y A080387 Sequence in context: A040086 A023274 A129864 this_sequence A097443 A100589 
               A111489
%Y A080387 Adjacent sequences: A080384 A080385 A080386 this_sequence A080388 A080389 
               A080390
%K A080387 nonn
%O A080387 1,1
%A A080387 Labos E. (labos(AT)ana.sote.hu), Mar 12 2003

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