4126649
domain: N
Appears in sequences
- Expansion of x*(1-2*x-x^2)/( (1-x)*(1+x)*(1-3*x+x^2)).at n=19A107387
- a(n) = a(n-1) + a(n-3) + a(n-4) for n > 3, a(0) = -1, a(1) = 1, a(2) = 2, a(3) = 1.at n=34A111569
- Numbers n such that n^2 - 1 is the product of four distinct Fibonacci numbers greater than 1.at n=30A242074
- a(n) = F(n)*F(n+1) - (-1)^n, where F = A000045.at n=17A260259