-24475

Appears in sequences

• Expansion of 1/(1 - 3*x + 4*x^2).at n=14A049072
• Shifts left two places under BIN1 transform.at n=21A052341
• Lucas and Lehmer numbers with parameters (1 +- sqrt(-7))/2.at n=30A107920
• Row sums of the Riordan array (1-4x+4x^2, x(1-2x)) (A167431).at n=27A167433
• a(0)=1, a(1)=1; thereafter a(n) = -a(n-1) - 2*a(n-2).at n=28A169998
• a(n) = 5*a(n-1) - 8*a(n-2), with a(0)=0, a(1)=1.at n=10A190969