913152

Appears in sequences

• a(n) = 4*a(n-1) + 4*a(n-2), n>2, a(0)=1, a(1)=3, a(2)=15.at n=9A155117
• Solutions y to the negative Pell equation y^2 = 72*x^2 - 73728 with x,y >= 0.at n=5A281238