On the Diophantine equation x^2+2^a.3^b.11^c=y^n
  In this note, we find all the solutions of the Diophantine equation x^2 +2^a.3^b.11^c=y^n in nonnegative integers a, b, c, x, y, n>= 3 with x and y coprime. 
Ismail Naci Cangul, Musa Demirci, Ilker Inam, Florian Luca, Gokhan   Soydan
math.NT