-6765

Appears in sequences

• a(n+2) = -a(n+1) + a(n) (signed Fibonacci numbers) with a(-2) = a(-1) = 1; or Fibonacci numbers (A000045) extended to negative indices.at n=22A039834
• Expansion of x/(x^4-3*x^3+4*x^2-2*x+1).at n=19A051111
• Expansion of x/(x^4-3*x^3+4*x^2-2*x+1).at n=20A051111
• a(n) = (-1)^(n-1)*(a(n-1) - a(n-2)), a(1)=1, a(2)=1.at n=42A051792
• a(n) = (-1)^(n-1)*(a(n-1) - a(n-2)), a(1)=1, a(2)=1.at n=45A051792
• A measure of how close the golden ratio is to rational numbers.at n=54A066212
• A characteristic triangle for the Fibonacci numbers.at n=64A110033
• a(n) = A000045[n]*(A004001[n + 1] - 2*A004001[n] + A004001[n - 1]).at n=19A120473
• First differences of A135992.at n=20A135994
• a(n)=3a(n-1)-4a(n-2)+2a(n-3)-a(n-4), a(0)=a(1)=a(2)=0, a(3)=1, a(4)=3.at n=20A138112
• a(n)=3a(n-1)-4a(n-2)+2a(n-3)-a(n-4), a(0)=a(1)=a(2)=0, a(3)=1, a(4)=3.at n=21A138112
• Fibonacci numbers (A000045) starting at offset -20.at n=0A147316
• a(n) = a(n-1)+a(n-2), n>1 ; a(0)=1, a(1)=-1.at n=22A152163
• Hankel transform of A165203.at n=8A165204
• Hankel transform of A165203.at n=9A165204
• Triangle of coefficients of Chebyshev's S(n,x-3) polynomials (exponents of x in increasing order).at n=45A207815