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A228651 Numbers m such that if an urn contains m balls, with at least one each of c colors, for some c > 1 there exists a combination of c colors such that it is equally probable for c balls randomly selected from the urn to all be either the same color or distinct colors. 4

%I #15 Jul 29 2022 16:51:23

%S 4,6,8,9,10,11,12,13,14,16,17,18,20,21,22,23,24,25,26,28,29,30,32,33,

%T 34,35,36,37,38,39,40,41,42,43,44,45,46,48,49,50,51,52,53,54,55,56,57,

%U 58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74,75,76

%N Numbers m such that if an urn contains m balls, with at least one each of c colors, for some c > 1 there exists a combination of c colors such that it is equally probable for c balls randomly selected from the urn to all be either the same color or distinct colors.

%H William Rex Marshall, <a href="/A228651/a228651.txt">Pascal program</a>.

%o (Pascal) See the link section.

%Y Cf. A228650, A228652, A228653.

%K nonn

%O 1,1

%A _William Rex Marshall_, Aug 29 2013

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Last modified April 25 10:22 EDT 2024. Contains 371967 sequences. (Running on oeis4.)