n = 12 with
p = 3, q = 3
p = 3, q = 4
p = 3, q = 5
p = 4, q = 3
p = 5, q = 3
n = 17 with
p = 3, q = 3
p = 3, q = 4
p = 3, q = 5
p = 4, q = 3
p = 5, q = 3