Mastodawn

Rémi Eismann Apr 8, 2024

One day, one decomposition
A069059: Numbers k such that k and sigma(k) are not relatively prime

3D graph, threejs - webGL ➡️ https://decompwlj.com/3Dgraph/A069059.html
2D graph, first 500 terms ➡️ https://decompwlj.com/2Dgraph500terms/A069059.html

#decompwlj #maths #mathematics #sequence #OEIS #javascript #php #3D #numbers #sigma #relatively #prime #graph #threejs #webGL

lobster BimBot Apr 4, 2024

Dear Friends of the Portal,

As we know, #entering the past from the present is #relatively #easy but prophecy, weather forecasting and knowing #outcomes ...
... that is another #story ...
With that in mind:

oops the future calls ... another time

Rémi Eismann Nov 27, 2023

One day, one decomposition
A050384: Nonprimes such that n and phi(n) are relatively prime

3D graph, threejs - webGL ➡️ https://decompwlj.com/3Dgraph/A050384.html
2D graph, first 500 terms ➡️ https://decompwlj.com/2Dgraph500terms/A050384.html

#decompwlj #maths #mathematics #sequence #OEIS #javascript #php #3D #numbers #nonprimes #phi #relatively #prime #graph #threejs #webGL

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Alcea Dec 23, 2022

@enigmatico

That is indeed very odd

Especially, as this #calculation is #relatively #simple ...

Maybe some #pattern inside your calculation is veering it off ?

(You do realize you are doing their job rn ? )

PS:
This (#german ) person has some #widget calcs too
https://www.arndt-bruenner.de/mathe/scripts/gleichungssysteme.htm

Maybe ask @puniko for help with translation

Lineare Gleichungssysteme lösen mit dem Gaußschen Eliminationsverfahren

Rémi Eismann Dec 8, 2022

One day, one decomposition
A003277: Cyclic numbers: k such that k and phi(k) are relatively prime; also k such that there is just one group of order k, i.e., A000001(n) = 1

3D graph #threejs #webGL ➡️ https://decompwlj.com/3Dgraph/Cyclic_numbers.html
2D graph, first 500 terms ➡️ https://decompwlj.com/2Dgraph500terms/Cyclic_numbers.html

#decompwlj #math #mathematics #sequence #OEIS #javascript #php #3D #numbers #cyclic #phi #relatively #prime #group #graph