Prime Spiral
The numbers arranged in a Spiral
with Primes indicated in black, as first drawn by S. Ulam. Unexpected patterns of diagonal lines are apparent in such a plot,as illustrated in the above
grid.
References
Dewdney, A. K. ``Computer Recreations: How to Pan for Primes in Numerical Gravel.'' Sci. Amer. 259, 120-123, July 1988. Lane, C. ``Prime Spiral.'' http://www.best.com/~cdl/PrimeSpiralApplet.html.
Weisstein, E. W. ``Prime Spiral.'' Mathematica notebook PrimeSpiral.m.
- Liouville Number
- Liouville Polynomial Identity
- Liouville-Roth Constant
- Liouville's Boundedness Theorem
- Liouville's Conformality Theorem
- Liouville's Conic Theorem
- Liouville's Constant
- Liouville's Elliptic Function Theorem
- Liouville Space
- Liouville's Phase Space Theorem
- Liouville's Rational Approximation Theorem
- Liouville's Sphere-Preserving Theorem
- Lipschitz Condition
- Lipschitz Function
- Lipschitz's Integral
- Lissajous Curve
- Lissajous Figure
- List
- Lituus
- Lituus Inverse Curve
- LLL Algorithm
- Ln
- Lobachevsky-Bolyai-Gauss Geometry
- Lobachevsky's Formula
- Lobatto Quadrature