-121393
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=28A039834
- A transform of the Fibonacci numbers.at n=26A103311
- A transform of the Fibonacci numbers.at n=27A103311
- Expansion of (1-x)*(1-x+x^2)/(1-3*x+4*x^2-2*x^3+x^4).at n=25A105371
- Expansion of (x-1)*(x+1) / (8*x^2 + 1 - 3*x + x^4 - 3*x^3).at n=12A108196
- First differences of A135992.at n=26A135994
- Binomial transform of 1, 1, 0, -1, -1 (periodically continued).at n=25A138003
- a(n) = a(n-1)+a(n-2), n>1 ; a(0)=1, a(1)=-1.at n=28A152163
- a(n) = F(n) * (-1)^(n*(n-1)/2) where F(n) = A000045(n) Fibonacci numbers.at n=26A333378
- First term of the n-th differences of the powers of primes. Inverse zero-based binomial transform of A000961.at n=21A377054