Numberphile 了不起的牙签图案+Houdini 胡迪尼实践案例
生成器 http://oeis.org/A139250/a139250.anim.html翻译:B站UP xyqyear https://www.bilibili.com/video/av40615013
胡迪尼实践案例 Houdini Toothpick and Automaton
by my friend 安UUUUU (微博 https://weibo.com/u/2393233420)
视频:https://www.bilibili.com/video/av41929154/
文件: drive.google.com/open?id=1gSKaBmlt8Q_8DLzVcGCv5yPIFpQQvmju