Denote the elements of the field $F_{4}$ by ${0, 1, w, w + 1}$, where w satisfies the following equation with coefficients in $F2: w^{2} + w + 1 = 0$.
Bumerang is a recurrent double sequence defined by $a(i, 0) = a(0, j) = 1$ and $a(i, j) = f(a(i, j-1), a(i-1, j-1), a(i-1, j) )$,
where $f(x, y, z ) …