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@nattyover Not quite one tweet, but a classic short paper of Don Zagier from 1975 setting up the basic mysteries of the subject: https://t.co/bwM8kZfOgB
@nattyover Not quite one tweet, but a classic short paper of Don Zagier from 1975 setting up the basic mysteries of the subject: https://t.co/bwM8kZfOgB