-2752512

Appears in sequences

• a(n+1)=2a(n)-4a(n-1)+4a(n-2).at n=26A035302
• Triangle T, read by rows, where matrix power T^2 has powers of 2 in the secondary diagonal: [T^2](n+1,n) = 2^(n+1), with all 1's in the main diagonal and zeros elsewhere.at n=29A117250
• Coefficients of powers of two Hadamard characteristic polynomials: M(n)=Hadamard[2^n] except for 12.at n=39A158234
• Expansion of (1-8x^2-24x^3)/((1-2x)^2*(1+2x+4x^2)).at n=17A168054