-143955

Appears in sequences

• Coefficient array for orthogonal polynomials p(n,x)=(x-(2n-1))*p(n-1,x)-(2n-2)^2*p(n-2,x), p(0,x)=1,p(1,x)=x-1.at n=28A182826
• E.g.f. 1/sqrt(1+2x+4x^2).at n=7A182827