Pearls of Sluze
The Pearls of Sluze are curves that are generated by the Cartesian equation
y n = k(a - x) p x m
where n, m, and p are integers. They were first studied by the French mathematician René de Sluze (1622–1685) between 1657 and 1698 and were named the Pearls of Sluze by Blaise Pascal.