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Dec 28, 2023 at 10:13 history closed Sam Hopkins
Carl-Fredrik Nyberg Brodda
Daniele Tampieri
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Dave Benson
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Dec 28, 2023 at 1:45 comment added Richard Stanley For the optimal situation in which every four-element subset occurs as a subset of exactly one of $T_i$'s, see the theory of $t$-designs (with $\lambda=1$), e.g., en.wikipedia.org/wiki/Block_design or webspace.maths.qmul.ac.uk/l.h.soicher/designtheory.org/library/…,
Dec 27, 2023 at 22:11 answer added Joe Silverman timeline score: 1
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Dec 28, 2023 at 10:13
Dec 27, 2023 at 21:39 comment added RobPratt math.stackexchange.com/questions/tagged/lotteries
S Dec 27, 2023 at 21:30 review First questions
Dec 27, 2023 at 22:03
S Dec 27, 2023 at 21:30 history asked guipivoto CC BY-SA 4.0