Presentation at court -- Divisors for diversion -- Perfection -- Just between friends -- Invention of the master -- Open sesame -- The cup of Tantalus -- Digits and the magic of 9 -- Scales and discords -- Cycling towards infinity -- 11111...111 -- ø-fie-fo-fum -- Queer logs-- back to the primitive -- The eternal triangle -- On the square -- Farey tails -- Round the perimeter -- Ball games -- Theorema aureum -- Among the Himalayas -- Resolution -- The Pellian -- Morphology -- The stone wall -- Tilts and tourneys -- The queen explains: solutions to problems.
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