... the Hadamard difference sets we seek in groups of order 16. All ( 16, 6, 2) difference sets are constructed in this manner; in section 4 we provide the fac-toring for each of the 27 ( 16, 6, 2) difference ... Eachof the 27 difference sets discovered by Kibler can be rediscovered in this manner. Theresults are listed below.4 All ( 16,6 ,2) Difference setsWe list all twenty-seven ( 16, 6, 2) difference sets ... symmetric designs and difference sets, see Lander’s monograph, [8]. The ( 16, 6, 2) designs in detail are described in [2].Kibler found, by computer in 1978, all ( 16, 6, 2) difference sets. There...