hi,

Thomas de Groot <tho### [at] degrootorg> wrote:
> Op 24/02/2022 om 17:57 schreef Robert McGregor:
> > A simple Ulam spiral displaying the locations of the first 2088 prime numbers
>
> ... First time I heard about an ulam spiral...

same here.  v pleasing, visually.  the Wikipedia page shows that other
arrangements are .. permissible.  attached shows primes marked on a Hilbert
Curve (sphere_sweep, 4096 points), more "patterns".  (I wonder how much of those
"patterns" is just the result of a desire to see patterns.  :-))


regards, jr.

Post a reply to this message

Attachments:
Download 'h12.png' (220 KB)

Preview of image 'h12.png'