66770564

Appears in sequences

• Fibonacci sequence beginning 2, 6.at n=35A022112
• Sum of Lucas numbers and reflected Lucas numbers (comment to A061084).at n=36A075091
• Number of binary strings of length n with no substrings equal to 0000, 0001 or 1001.at n=36A164413
• Values of gcd(Fibonacci(n), Fibonacci(n+3)+2) sorted with no repeats.at n=37A178767
• Denominators of A178381(4*n+1)/A178381(4*n).at n=18A179132
• G.f.: Product_{n>=1} (1 - Lucas(n)*x^n + (-x^2)^n) / (1 + Lucas(n)*x^n + (-x^2)^n) where Lucas(n) = A000204(n).at n=36A203850
• a(n) = 3*a(n-2) - a(n-4) for n > 3, with a(0)=4, a(1)=3, a(2)=a(3)=6, a sequence related to bisections of Fibonacci numbers.at n=36A292616