4807526977

Appears in sequences

• Expansion of (2-6*x+4*x^2-x^3)/((1-x)*(1-3*x+x^2)).at n=24A052925
• a(n) = 3*a(n-1) - a(n-2) - 1 with a(0) = 1 and a(1) = 2.at n=24A055588
• a(n) = Fibonacci(4n) + 1, or Fibonacci(2n-1)*Lucas(2n+1).at n=12A081002
• a(n) = F(n)*L(n+2) where F=Fibonacci and L=Lucas numbers.at n=23A128533
• a(2n) = A000045(6n) + 1, a(2n+1) = A000045(6n+3) - 1.at n=16A140413