SDeG.py

# Séquence de grêlon.

n = 3
while n != 1:
    print(n)
    if n % 2 == 0:
        n = n / 2
    else:
        n = 3 * n + 1
print(n)


# https://github.com/dadou-steven/mathematical/blob/main/src/main/java/appsinc/fr/lesmaths/SDeG.java