-46368
domain: Z
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=26A039834
- a(n) = (-1)^(n-1)*(a(n-1) - a(n-2)), a(1)=1, a(2)=1.at n=50A051792
- Expansion of (1-x)*(1-x+x^2)/(1-3*x+4*x^2-2*x^3+x^4).at n=24A105371
- First differences of A135992.at n=24A135994
- a(n) = a(n-1)+a(n-2), n>1 ; a(0)=1, a(1)=-1.at n=26A152163
- Hankel transform of A157143.at n=34A157144
- a(n+4) = a(n+3) - 2*a(n+2) - a(n+1) - a(n).at n=22A173343
- a(n) = (-1)^floor( (n-1) / 3 ) * F(n), where F = Fibonacci.at n=24A236191