-3617721

Appears in sequences

• a(n) = 3*a(n-1) - 4*a(n-2) with a(0) = 2, a(1) = 3.at n=21A247563
• 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=42A247564