Saída para n = 10:

    0 
    0  1 
    0  1  2 
    0  1  2  3 
    0  1  2  3  4 
    0  1  2  3  4  5 
    0  1  2  3  4  5  6 
    0  1  2  3  4  5  6  7 
    0  1  2  3  4  5  6  7  8 
    0  1  2  3  4  5  6  7  8  9 
    0  1  2  3  4  5  6  7  8  9 10