-14336

Appears in sequences

• Expansion of 8-dimensional cusp form.at n=24A002408
• Expansion of e.g.f. exp(tanh(log(1+x))).at n=9A009257
• Expansion of 1/(1-2*x+2*x^3).at n=23A077940
• (1,1) entry of powers of the orthogonal design shown below.at n=11A087621
• a(n) = -2*a(n-1) + 4*a(n-3), with a(0) = 1, a(1) = a(2) = 0.at n=16A099212
• Minimal determinant of real n X n symmetric (+1,-1) matrices.at n=8A119000
• Expansion of (1-2*x)/(1-2*x+2*x^3).at n=23A124395
• Triangular sequence of coefficients of characteristic polynomials rational matrices of a type: M(3)= {{0, -3/2, 0}, {-3/2, 0, -3/2}, {0, -3/2, 0}}.at n=42A137949
• a(n)=(5-(-1)^n-6*n)*2^(n-2).at n=10A179609
• Triangle read by rows, matrix inverse of [x^(n-k)](skp(n,x)-skp(n,x-1)+x^n) where skp denotes the Swiss-Knife polynomials A153641.at n=39A214622
• Matrix inverse of triangle A088956.at n=39A215534
• T(n, k) = 2^n * n! * [x^k] [z^n] (4*exp(x*z))/(exp(z) + 1)^2, triangle read by rows, for 0 <= k <= n. Coefficients of Euler polynomials of order 2.at n=39A326480