The Slightly Spooky Recamán Sequence - Numberphile
11:22
The Problem with 7825 - Numberphile
16:07
Terrific Toothpick Patterns - Numberphile
20:08
Complex Fibonacci Numbers?
26:01
The shape that should be impossible.
19:37
Por que esse quebra-cabeça é impossível
18:55
The Feigenbaum Constant (4.669) - Numberphile
9:46
How many ways can circles overlap? - Numberphile
12:04