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Bracelets with beads

other, 2 plots

A plot of a well-known mathematical problem posed by Dudeney: find all possible bracelets made with beads of two different colors. They have to be unique under rotation and also if you flip them (reverse order). In most texts it is named beads and necklace.

10 beads bracelet, white on black

10 beads bracelet, white on black

Colour
white on black
Order
more or less in sequence
Paper
Fabriano Black Black 300 g, A4
Pen
white pen (Mitsubishi Uni-ball)
Dimensions
27.5 × 13 cm

10 beads so there are 210 = 1024 potential bracelet configurations. The demands make that there are only 78 real different ones possible

More or less in sequence

10 beads bracelet, black on white

10 beads bracelet, black on white

Colour
black on white
Order
more or less in sequence
Paper
Canson XL Bristol, A4
Pen
black pigmented fineliner
Dimensions
27.5 × 13 cm

10 beads so there are 210 = 1024 potential bracelet configurations. The demands make that there are only 78 real different ones possible

More or less in sequence