Şansal Birbaş wrote: > for i in range(1,5): > for j in i*range(max_expander+1): > for k in i*range(max_expander+1): > for m in i*range(max_expander+1): > for r in i*range(max_expander+1): I must be missing something, but I can't see why you are using i*range(...) instead of just range(...). Can you enlighten me?