1860501

Appears in sequences

• Number of independent sets of vertices in graph K_4 X C_n (n > 2).at n=10A051929
• a(n) = Lucas(4*n+2) + 3, or Lucas(2*n)*Lucas(2*n+2).at n=7A081077
• a(n) = L(n)^2 - 5*(-1)^n = L(n+1)*L(n-1), where L = A000032.at n=15A292696
• a(n) = Lucas(n) + 3.at n=29A366506