-7920

Appears in sequences

• Expansion of log(1+sinh(x)*cos(x)).at n=9A009357
• arctanh(sinh(x)*cos(x))=x-20/5!*x^5-560/7!*x^7-7920/9!*x^9...at n=4A012568
• Expansion of e.g.f. log(sec(x) + sinh(x)).at n=9A013197
• Triangle T(n,k) by rows: coefficient [x^(n-k)] of 2^n * n! *L(n,1/2,x), with L the generalized Laguerre polynomials in the Abramowitz-Stegun normalization.at n=17A098503
• Array for second (k=2) convolution of Chebyshev's S(n,x)=U(n,x/2) polynomials.at n=52A128503
• Integration of A053120: triangle of coefficients of integration of Chebyshev's T(n,x) polynomials (powers of x in increasing order).at n=68A136163
• Differentiation of A137286: Triangle of coefficients of differentiation recursive orthogonal Hermite polynomials given in Hochstadt's book : P(x, n) = x*P(x, n - 1) - n*P(x, n - 2).at n=38A136209
• Triangle T(n, k) = coefficients of p(n, x), where p(n, x) = (-1)^n*(1+x)*((n+1)^2 +x)^(n-1), p(0, x) = 1, and p(1, x) = -1-x, read by rows.at n=18A158286
• Array: row n shows the coefficients of the characteristic polynomial of the n-th principal submatrix of {|i-j}, (A049581).at n=39A203993
• Expansion of f(-q^3)^2 * Q(q^3) + 48 * q * f(-q^3)^10 in powers of q.at n=25A234565