1906866

Appears in sequences

• Fibonacci sequence beginning 0, 6.at n=28A022089
• Expansion of (1+3x+x^2)/(1-3x+x^2).at n=14A099857
• a(n) = tau(n)*Fibonacci(n), where tau(n) = A000005(n), the number of divisors of n.at n=27A203847
• a(n) = Fibonacci(n)*A132973(n) for n>=1, with a(0)=1, where A132973 lists the coefficients in psi(-q)^3/psi(-q^3) and where psi() is a Ramanujan theta function.at n=28A205970
• a(n) = Fibonacci(n)*A002652(n) for n>=1, with a(0)=1, where A002652 lists the coefficients in theta series of Kleinian lattice Z[(-1+sqrt(-7))/2].at n=28A205975
• Number of length-n ternary strings x with the property that if w is a subword of x and |w| >= 3, then w reversed is not a subword of x.at n=27A330010