Search: id:A100967
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%I A100967
%S A100967 3,9,18,29,44,61,81,104,130,159,191,225,263,303,347,393,442,494,549,606,
%T A100967 667,730,797,866,938,1013,1091,1172,1255,1342,1431,1524,1619,1717,1818,
%U A100967 1922,2029,2138,2251,2366,2485,2606,2730,2857,2987,3119,3255,3394,3535
%N A100967 Greatest k such that binomial(2k + 1, k - n) < binomial(2k, k).
%C A100967 From the formula, if we know k, we can estimate n as approximately 0.83 
               sqrt(k).
%F A100967 Round(0.3807 + 1.43869 n + 1.44276 n^2) is an exact fit for the first 
               50 terms.
%t A100967 k=1; Table[While[Binomial[2k+1, k-n] < Binomial[2k, k], k++ ]; k, {n, 
               50}]
%Y A100967 Cf. A003015 (numbers that occur 5 or more times in Pascal's triangle).
%Y A100967 Sequence in context: A057681 A103312 A159794 this_sequence A134479 A045943 
               A127759
%Y A100967 Adjacent sequences: A100964 A100965 A100966 this_sequence A100968 A100969 
               A100970
%K A100967 nonn
%O A100967 1,1
%A A100967 T. D. Noe (noe(AT)sspectra.com), Nov 23 2004

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