"First 20 Brazilian numbers:
7  8  10  12  13  14  15  16  18  20  21  22  24  26  27  28  30  31  32  33
First 20 odd Brazilian numbers:
7  13  15  21  27  31  33  35  39  43  45  51  55  57  63  65  69  73  75  77
First 20 prime Brazilian numbers:
7  13  31  43  73  127  157  211  241  307  421  463  601  757  1093  1123  1483  1723  2551  2801"