User:Arbol01

User in de.wikipedia.org, en.wikipedia.org, commons.wikimedia.org and www.wikisource.org.

My mainly interested articles are:


 * Prime number
 * Pseudoprime
 * Carmichael number
 * Zeisel number
 * Cunningham chain
 * Cullen number
 * Woodall number
 * Prime quadruplet
 * Happy number
 * Lucas-Carmichael number


 * Fermat primality test
 * Primality test


 * Conway's Game of Life


 * Legendre symbol
 * Lucas sequence
 * quadratic residue


 * triangle number
 * centered square number
 * centered hexagonal number

(not complete)

de:Benutzer:Arbol01


 * Arbol's Music-Kanon
 * Arbol's Book-Kanon