-703889
domain: Z
Appears in sequences
- a(n) = -a(n-1) - 2*a(n-2).at n=41A001607
- Expansion of (1 + 2*x)/(1 + 3*x + 4*x^2).at n=20A087168
- Lucas and Lehmer numbers with parameters (1 +- sqrt(-7))/2.at n=41A107920
- Row sums of the Riordan array (1-4x+4x^2, x(1-2x)) (A167431).at n=38A167433
- Expansion of (2 + x + x^2 + x^3 - x^4 - 2*x^5 - 4*x^6 - 8*x^7) / (1 - x^4 + 16*x^8) in powers of x.at n=41A247487
- a(n) = 3*a(n-1) - 4*a(n-2) with a(0) = a(1) = 1.at n=20A247560
- a(n) = 3*a(n-2) - 4*a(n-4) with a(0) = 2, a(1) = 1, a(2) = 3, a(3) = 1.at n=41A247564