Ulam Spiral (en.wikipedia.org)

3 points by sakuraiben 12y ago ↗ HN

2 comments

[ 4.9 ms ] story [ 13.1 ms ] thread

twiceaday 12y ago ↗

Interesting video from Numberphile on the subject

https://www.youtube.com/watch?v=iFuR97YcSLM

dang 12y ago ↗

https://hn.algolia.com/?q=%22ulam+spiral%22#!/story/forever/...