802165
domain: N
Appears in sequences
- Expansion of 1/(1 - 3*x + 4*x^2).at n=20A049072
- a(n) is the unique odd positive solution x of 2^n = 7x^2+y^2.at n=41A077020
- Lucas and Lehmer numbers with parameters (1 +- sqrt(-7))/2.at n=42A107920
- Row sums of the Riordan array (1-4x+4x^2, x(1-2x)) (A167431).at n=39A167433
- a(0)=1, a(1)=1; thereafter a(n) = -a(n-1) - 2*a(n-2).at n=40A169998
- a(n) = 5*a(n-1) - 8*a(n-2), with a(0)=0, a(1)=1.at n=14A190969