Prime Quadruplets
                  |not prime|
        p     p+2 |    p+4  |   p+6     p+8
------------------+---------+--------------
 1.     5       7 |      9  |    11      13
 2.    11      13 |     15  |    17      19
 3.   101     103 |    105  |   107     109
 4.   191     193 |    195  |   197     199
 5.   821     823 |    825  |   827     829
 6.  1481    1483 |   1485  |  1487    1489
 7.  1871    1873 |   1875  |  1877    1879
 8.  2081    2083 |   2085  |  2087    2089
 9.  3251    3253 |   3255  |  3257    3259
10.  3461    3463 |   3465  |  3467    3469