175752

Appears in sequences

• Triangle T, read by rows, where T(n,k) = [T^2](n-1,k) + [T^2](n-2,k-1) (n>k>0), with T(n,0) = [T^2](n-1,0) (n>0) and T(n,n) = 1 (n>=0), where T^2 is the matrix square of T.at n=57A109316
• Column 2 of triangle T=A109316 where T(n,k) = [T^2](n-1,k) + [T^2](n-2,k-1) and T^2 is the matrix square of A109316.at n=8A109318
• Expansion of (1+x-2*x^2-2*x^3) / (1-6*x^2-4*x^3+2*x^4).at n=13A384633