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This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A048195 Numbers k for which binomial(k, floor(k/2)) has fewer unitary than non-unitary divisors.

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%I A048195 #17 Oct 05 2024 09:07:17
%S A048195 10,25,26,27,28,29,30,34,36,37,38,40,45,46,47,48,49,50,51,52,53,54,58,
%T A048195 60,61,62,63,64,66,68,69,70,75,76,77,78,80,81,82,83,84,85,86,87,88,89,
%U A048195 90,91,92,93,94,95,96,97,98,99,100,101,102,103,104,105,106,108,109,110
%N A048195 Numbers k for which binomial(k, floor(k/2)) has fewer unitary than non-unitary divisors.
%C A048195 A048111 applied to central binomial coefficients.
%H A048195 Amiram Eldar, <a href="/A048195/b048195.txt">Table of n, a(n) for n = 1..10000</a>
%F A048195 A034444(A001405(k)) < A048105(A001405(k)).
%e A048195 k = 58: binomial(58,29) has 20480 divisors, 8192 unitary ones and 12288 non-unitary ones, and 8192 < 12288.
%t A048195 q[n_] := Module[{e = FactorInteger[Binomial[n, Floor[n/2]]][[;; , 2]]}, Times @@ (e + 1) > 2^(Length[e] + 1)]; Select[Range[120], q] (* _Amiram Eldar_, Oct 05 2024 *)
%o A048195 (PARI) nbud(n) = 1<<omega(n); \\ from A034444
%o A048195 isok(n) = my(b=binomial(n, n\2)); numdiv(b) > 2*nbud(b); \\ _Michel Marcus_, Mar 15 2018
%Y A048195 Cf. A001405, A034444, A048105, A048111.
%K A048195 nonn
%O A048195 1,1
%A A048195 _Labos Elemer_
%E A048195 More terms from _Michel Marcus_, Mar 15 2018