-11264

Appears in sequences

• Expansion of sin(x)*cos(tan(x)).at n=4A009535
• Expansion of sinh(x)*exp(tanh(x)).at n=9A009625
• Expansion of e.g.f. tanh(tan(x)*x) (even powers only).at n=4A009817
• Triangle read by rows of coefficients of Chebyshev's U(n,x) polynomials (exponents in increasing order).at n=88A053117
• Triangle of coefficients of Chebyshev's U(n,x) polynomials (exponents in decreasing order).at n=80A053118
• Triangular array read by rows, giving coefficients of P(n,X) = Product_{i=1..2n+1} (X - 1/cos(Pi*k/(2n+1))), a polynomial with integer coefficients.at n=50A075613
• Triangular array read by rows, giving coefficients of P(n,X) = Product_{i=1..2n+1} (X - 1/cos(Pi*k/(2n+1))), a polynomial with integer coefficients.at n=51A075613
• Determinant of the symmetric n X n matrix A defined by A[i,j] = |i-j| for 1 <= i,j <= n.at n=11A085750
• Triangle read by rows: nonzero coefficients of polynomials 2^n*E(n,x), with E the Euler polynomials.at n=42A099932
• Skew triangle associated to the Euler numbers.at n=72A117411
• Triangle T(n, k) = binomial(2*n-k, k)*(-4)^(n-k), read by rows.at n=22A117438
• Column 0 of triangle A118441, which is the matrix log of triangle A118435.at n=11A118442
• Irregular triangle read by rows: coefficients of U(n,x), Chebyshev polynomials of the second kind with exponents in decreasing order.at n=43A133156
• Triangular sequence from a Peters polynomials expansion: l0 = 2; m0 = 2; p(t) = (1 + t)^x/(1 + (1 + t)^l0)^m0.at n=43A137393
• Expansion of (1-8x^2-24x^3)/((1-2x)^2*(1+2x+4x^2)).at n=10A168054
• Array: row n shows the coefficients of the characteristic polynomial of the n-th principal submatrix of {|i-j}, (A049581).at n=38A203993
• Determinant of the (p_n+1)/2 X (p_n+1)/2 matrix with (i,j)-entry (i,j=0,...,(p_n-1)/2) equal to the Legendre symbol((i^2+j^2)/p_n), where p_n is the n-th prime.at n=7A227968
• Triangle read by rows: coefficients of descending powers of the polynomial V(n,x) = cos((2n+1)(arccos(x)/2))/cos(arccos(x)/2), n >= 0.at n=80A228565
• Triangle read by rows: T(0,0) = 1; T(n,k) = 2*T(n-1,k) - T(n-3,k-1) for k = 0..floor(n/3); T(n,k)=0 for n or k < 0.at n=36A317504
• Triangle read by rows: T(0,0) = 1; T(n,k) = 2 T(n-1,k) - T(n-4,k-1) for 0 <= k <= floor(n/4); T(n,k)=0 for n or k < 0.at n=33A317506