NumberSpiral.com - Home

Number spirals are very simple. To make one, we just write the non-negative integers on a ribbon and roll it up with zero at the center. The trick is to arrange the spiral so all the perfect squares (1, 4, 9, 16, etc.) line up in a row on the right side:

[eotect]

This site is devoted to the number spiral, a type of graph that reveals the distribution of primes and other properties of integers.

[tetrinet]

数学