In case of multiple representation of terms in A154777, as, e.g., for A154777(11)=27, 3^2+2*3^2 (x=3, y=3) and 5^2+2*1^2 (x=5, y=1) a pair (x,y) with smallest x is chosen, hence 11th term of the sequence is 3. The corresponding y values are in A201593.