ecpr1.4 23.10.2003

;prime k-tuplets

2-tuplet, (twin):       n, n+2
3-tuplet, (triplet):    n, n+2, n+6
                        n, n+4, n+6
4-tuplet, (quadruplet): n, n+2, n+6, n+ 8
5-tuplet, (quintuplet): n, n+2, n+6, n+ 8, n+12
                        n, n+4, n+6, n+10, n+12
6-tuplet, (sextuplet):  n, n+4, n+6, n+10, n+12, n+16
7-tuplet, (septuplet):  n, n+2, n+6, n+ 8, n+12, n+18, n+20