275863

Appears in sequences

• Positive numbers y such that y^2 is of the form x^2+(x+16807)^2 with integer x.at n=23A156713
• a(n) = 2*a(n-1) + 7*a(n-2) for n > 1; a(0) = 1, a(1) = 7.at n=9A164544