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A228651 Numbers n such that if an urn contains n 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
4, 6, 8, 9, 10, 11, 12, 13, 14, 16, 17, 18, 20, 21, 22, 23, 24, 25, 26, 28, 29, 30, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..66.

William Rex Marshall, Pascal program for this sequence.

PROG

(PASCAL) See the link section.

CROSSREFS

Cf. A228650, A228652, A228653.

Sequence in context: A225668 A091985 A091984 * A045762 A320985 A047748

Adjacent sequences:  A228648 A228649 A228650 * A228652 A228653 A228654

KEYWORD

nonn

AUTHOR

William Rex Marshall, Aug 29 2013

STATUS

approved

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Last modified February 18 04:48 EST 2020. Contains 332011 sequences. (Running on oeis4.)