-10864

Appears in sequences

• a(n) = -A001353(n).at n=8A106707
• a(n) = - 4*a(n-2) - a(n-4), a(0) = 1, a(1) = -4, a(2) = -6, a(3) = 15.at n=13A109731
• Center antidiagonal four in a tri-antidiagonal n-th Matrix generated triangular sequence: first element as 4==m[1,1,1].at n=28A124028
• a(0) = 1, a(1) = -4, a(n) = -4*a(n-1) - a(n-2) for n > 1.at n=7A125905
• Triangle T(n, k, m) = t(n, m)/(t(k, m)*t(n-k, m)), where t(n, k) = Product_{j=1..n} p(j, k+1), p(n, x) = Sum_{j=0..n} (-1)^j*A053122(n, j)*x^j, and m = 5, read by rows.at n=37A156599
• Triangle T(n, k, m) = t(n, m)/(t(k, m)*t(n-k, m)), where t(n, k) = Product_{j=1..n} p(j, k+1), p(n, x) = Sum_{j=0..n} (-1)^j*A053122(n, j)*x^j, and m = 5, read by rows.at n=43A156599
• Riordan array (1/(1+4x+x^2), x/(1+4x+x^2)).at n=28A159764
• Expansion of (1 - x)^4/((1 - x)^6 + x^6).at n=15A307089
• Expansion of 1/sqrt(1 - 4*x/(1+x)^4).at n=12A361790