-32256

Appears in sequences

• Triangle of coefficients of Euler polynomials 2^n*E_n(x) (exponents in increasing order).at n=49A004174
• Triangle of coefficients of Euler polynomials 2^n*E_n(x) (exponents in decreasing order).at n=50A004175
• sech(arctan(x)*log(x+1)) = 1 - 12/4!*x^4 + 60/5!*x^5 - 90/6!*x^6 + 420/7!*x^7...at n=9A012407
• Difference between the number of even reduced Latin rectangles of size 3 X n and the number of odd ones.at n=7A098276
• Expansion of (sqrt(1-8*x)-4*x)/sqrt(1-8*x).at n=6A098580
• Triangle read by rows: nonzero coefficients of polynomials 2^n*E(n,x), with E the Euler polynomials.at n=32A099932
• A triangular sequence from an expansion of coefficients of the function: p(x,t)=Exp(x*g*(t))*(1-f(t)^2);f(t)=4/(t^4-1);g(t)=t. (based on the Weierstrass functions of Scherk's minimal surface).at n=50A137520
• A triangular sequence of coefficients of an expansion of a Mach wave as a traveling wave in a medium: (vt')^2 = vp*vg = c^2 - (gamma-1)/(gamma+1)*vt^2; Substituting: vt -> exp(t*x); gamma->t; c->1; p(x,t) = 1 - exp(2*x*t)*(t - 1)/(1 + t).at n=51A138024
• 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=49A214622
• Matrix inverse of triangle A088956.at n=49A215534
• Chebyshev coefficients of density of states of cubic lattice.at n=4A288458