413367

Appears in sequences

• a(n) is the unique odd positive solution y of 2^n = 7x^2 + y^2.at n=37A077021
• a(n) = 3*a(n-1) - 4*a(n-2) with a(0) = 2, a(1) = 3.at n=19A247563
• a(n) = 3*a(n-2) - 4*a(n-4) with a(0) = 2, a(1) = 1, a(2) = 3, a(3) = 1.at n=38A247564