Algorithme de Syracuse
Pour n = 19
Itération #1 : n = 58
Itération #2 : n = 29
Itération #3 : n = 88
Itération #4 : n = 44
Itération #5 : n = 22
Itération #6 : n = 11
Itération #7 : n = 34
Itération #8 : n = 17
Itération #9 : n = 52
Itération #10 : n = 26
Itération #11 : n = 13
Itération #12 : n = 40
Itération #13 : n = 20
Itération #14 : n = 10
Itération #15 : n = 5
Itération #16 : n = 16
Itération #17 : n = 8
Itération #18 : n = 4
Itération #19 : n = 2
Itération #20 : n = 1
Il a fallu 20 itérations