“…hence, for any pair of integers £ ^ n, the value of Fi = JZ ^ i s g i v e n by (see [5] for 3. if {i, k} DAj = 0 then ^(H*) = 2" n , w {Tj)2 i = io (r))2 * = 0 and u) (Tj)2 i +2 t = 0. So, it directly follows, from (17), that the Walsh coefficient w 2 x +2 k of T" is Finally, we need to determinate how many sets Aj contain {i, k).…”